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Server-Side Request Forgery (SSRF) Resources

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A curated AppSec resource library covering XSS, SQLi, SSRF, IDOR, RCE, XXE, OSINT, and more.

Server-Side Request Forgery (SSRF)

In a Server-Side Request Forgery (SSRF) attack, the attacker abuses functionality on the server to read or update internal resources. By supplying or modifying a URL that the server-side code processes, the attacker can reach internal services, read cloud metadata, and access systems that are not exposed to the internet.

SSRF has become one of the highest-impact vulnerability classes in modern cloud environments. Accessing the cloud metadata endpoint (http://169.254.169.254) from an SSRF can yield temporary IAM credentials, leading to full cloud account compromise. Even in non-cloud environments, SSRF enables port scanning of internal networks, accessing internal admin panels, and reaching databases or caches that trust requests from localhost.

Attackers use a wide range of bypass techniques to defeat SSRF filters: DNS rebinding, IP address encoding variations (decimal, octal, hex), URL parser inconsistencies, IPv6 representations, and redirect chains. Partial SSRF — where the attacker controls only part of the URL — can still be exploitable through open redirects or URL fragment abuse.

SSRF commonly appears in webhook integrations, URL preview features, PDF generators, image processors, and any functionality that fetches remote resources on behalf of the user.

This page collects SSRF research, bypass techniques, cloud exploitation methods, and real-world writeups from bug bounty programs and security research.

From OWASP

Read the SSRF guideA long-form, source-cited deep dive synthesized from every resource below. The comprehensive SSRF guide on chs.usA hand-written, in-depth practitioner guide — attacks, testing, and prevention.
Date Added Link Excerpt
2026-08-06 NEW 2026CRLF-Powered Desync Attacks: Beheading HTTP Streams advanced 24 min read API SecTechnique detailing CRLF-powered HTTP desync attacks, transforming simple header injection into a wormable exploit. It covers novel methods for detecting and exploiting IP and connection-locked desyncs to achieve cross-network exploitation, generate XSS from thin air, and steal HTTPOnly cookies. Specific techniques discussed include Response Queue Poisoning (RQP) and its application against Content Delivery Networks (CDNs), leveraging Nginx misconfigurations, and exploiting custom headers like X-Original-Url to steal session tokens and access internal infrastructure, as demonstrated by a $20,000 bounty scenario. → portswigger.net
2026-08-05 NEW 2026CCB Alert: Warning: High severity flaws in #OpenWebUI ( v0.11.0) expose instances to #XSS #SSRF and #AuthBypass. Attackers can steal session tokens achieve full #AccountTakeover and access internal networks. #Patch #Patch #Patch More info: newsHigh-severity vulnerabilities in OpenWebUI v0.11.0 allow for Cross-Site Scripting (XSS), Server-Side Request Forgery (SSRF), and Authentication Bypass. These flaws enable attackers to steal session tokens, gain full account takeover, and access internal networks. Users are strongly urged to patch their OpenWebUI installations immediately.
2026-08-05 NEW 2026Django Flaws Let Attackers Trigger RCE SSRF DoS and XSS Attacks newsMultiple vulnerabilities have been discovered in the Django web framework, exposing users to various severe attacks. Attackers can exploit these flaws to execute arbitrary code remotely (RCE), perform server-side request forgery (SSRF), launch denial-of-service (DoS) attacks, and inject cross-site scripting (XSS) payloads. The article indicates a bug bounty payout for these discoveries but does not specify the amount. Users are strongly advised to update their Django installations to the latest versions to mitigate these risks. → gbhackers.com
2026-08-03 NEW 2026Alejandro Cervantes: La defensa contra SSRF necesita validar destino y controlar salida de red. Si la aplicación puede llegar a cualquier lugar una URL se convierte en capacidad. #SSRF #AppSec intermediateAlejandro Cervantes emphasizes that robust Server-Side Request Forgery (SSRF) defense requires validating destination URLs and controlling network egress. He argues that if an application has the ability to access any location, a URL effectively becomes a gateway for potential exploits. This highlights the critical need for strict validation to prevent unauthorized access and malicious actions.
2026-08-01 2026retxus: Pwned #Cohort Rato sin tocar un #SSRF Ahora voy a decir esto de manera educada #Windows sistema en decadencia como te vas a colgar con todo corriendo y luego actualiza sin siquiera pedir. #HTB #CTF #Hackthebox #pentesting #cybersecurity #EticalHacking #RedTeam intermediateThe author, retxus, reports successfully exploiting a Server-Side Request Forgery (SSRF) vulnerability in a Hack The Box (HTB) challenge called "Cohort." They express frustration with Windows' tendency to crash and update without user consent, labeling it a "decaying system." The post is tagged with cybersecurity and pentesting terms, indicating it's related to a capture the flag (CTF) event. No bounty payout amount is mentioned.
2026-08-01 2026Hugo | DevOps | Cybersecurity : CVE-2026-61953 - Unauthenticated SSRF in Simple Link Directory Pro =15.0.6. CVSS 7.2. No patch available. Mitigate by restricting outbound traffic. #CVE #infosec #SSRF #redteam #blueteam #devsecops #cybersecurity #cybersecuritytips #git #github #gitlab #ethicalhacking newsA critical unauthenticated Server-Side Request Forgery (SSRF) vulnerability, CVE-2026-61953, has been identified in Simple Link Directory Pro version 15.0.6. With a CVSS score of 7.2, this vulnerability poses a significant risk. Currently, no patch is available. Organizations are advised to mitigate this threat by restricting outbound network traffic.
2026-08-01 2026Root Vuln: Found SSRF on an API endpoint that converts HTML to PDF. Uploaded HTML with an external stylesheet link and the server actually fetched it confirmed via OOB callback. Also tied to a known CVE in the outdated library it's using. Reported responsibly #infosec #bugbounty #SSRF intermediateA security researcher discovered a Server-Side Request Forgery (SSRF) vulnerability in an API endpoint designed to convert HTML to PDF. By including an external stylesheet link in the uploaded HTML, the researcher confirmed the server fetched the resource via an Out-of-Band (OOB) callback. This vulnerability is linked to a known CVE affecting an outdated library. The issue was reported responsibly.
2026-08-01 2026Surya Raj Ghimire: SSRF can turn your trusted backend into an attacker's gateway. My latest article covers Server-Side Request Forgery (SSRF) prevention in ASP net core with practical fintech and Open Banking examples. Read: #SSRF #AppSec #OWASP intermediateSurya Raj Ghimire's latest article focuses on preventing Server-Side Request Forgery (SSRF) in ASP.NET Core. The piece emphasizes how SSRF vulnerabilities can transform trusted backend systems into entry points for attackers. Ghimire provides practical examples from the fintech and Open Banking sectors to illustrate these concepts. The article is relevant for those interested in application security and OWASP best practices.
2026-08-01 2026Surya Raj Ghimire: SSRF can turn your trusted backend into an attacker's gateway. My latest article covers Server-Side Request Forgery (SSRF) prevention in Core with practical fintech and Open Banking examples. Read: #SSRF #AppSec #OWASP intermediateSurya Raj Ghimire's latest article highlights the dangers of Server-Side Request Forgery (SSRF), which can compromise secure backends. The piece focuses on SSRF prevention within "Core" systems, offering practical examples from the fintech and Open Banking sectors. It emphasizes securing applications against this vulnerability.
2026-08-01 2026windshock: AI systems may have no direct internet access but still rely on Artifactory or Nexus for packagesmaking package repositories a new egress boundary. I built repository-ssrf-audit an open-source Codex Skill to analyze it. #ai #skills #SSRF #nexus #Jfrog intermediateAI systems, even without direct internet access, can expose new security risks through their reliance on package repositories like Artifactory and Nexus. These repositories become potential egress boundaries. To address this, an open-source Codex Skill called `repository-ssrf-audit` has been developed to analyze these vulnerabilities, specifically focusing on Server-Side Request Forgery (SSRF) within package repositories.
2026-07-31 2026Daily CyberSecurity: Four IBM WebSphere vulnerabilities are fixed including a 9.8 pre-auth RCE (CVE-2026-14512) and a 9.4 SSRF (CVE-2026-14529). Patch now. #IBMWebSphere #CVE202614512 #SSRF #RCE #Vulnerability #InfoSec newsIBM has released patches for four critical vulnerabilities in WebSphere. The most severe include a pre-authentication Remote Code Execution (RCE) flaw (CVE-2026-14512) with a CVSS score of 9.8 and a Server-Side Request Forgery (SSRF) vulnerability (CVE-2026-14529) rated 9.4. Users are strongly advised to apply these patches immediately to mitigate security risks.
2026-07-29 2026Daily CyberSecurity: Four OpenDJ vulnerabilities are patched in 5.1.2. They include a CVSS 9.6 authorization bypass and an unauthenticated SSRF scoring CVSS 9.4. #OpenDJ #SSRF #LDAP #AuthorizationBypass newsOpenDJ has released version 5.1.2 to patch four critical vulnerabilities. Two of the most severe include an authorization bypass with a CVSS score of 9.6 and an unauthenticated SSRF vulnerability with a CVSS score of 9.4. These patches address significant security risks within the LDAP directory service.
2026-07-29 2026vulnX: SSRF hunters: your GET request just hit a PUT-only wall (IMDSv2). Here's how you climb over it Most people give up when metadata endpoints demand PUT headers their blind SSRF can't send. Don't. #bugbounty #appsec #ssrf intermediatevulnX: SSRF hunters: your GET request just hit a PUT-only wall (IMDSv2). Here's how you climb over it 🧵 Most people give up when metadata endpoints demand PUT + headers their blind SSRF can't send. Do...
2026-07-28 2026xHackInSeconds: URL field accepted internal addresses. 169.254.169.254. IAM role credentials in the response. Full S3 and RDS access. #infosec #cloud #ssrf intermediateA vulnerability discovered by xHackInSeconds allowed a URL field to accept internal IP addresses, specifically `169.254.169.254`. This led to the exposure of IAM role credentials within the response. Attackers could exploit this to gain full access to S3 and RDS resources. The report highlights a Server-Side Request Forgery (SSRF) vulnerability in cloud environments. No specific bounty payout amount was mentioned.
2026-07-27 2026VIEH Group: #ssrf extention bypass if it requires the file to end with .yaml do it: url= http://2852039166/latest/meta-data/iam/security-credentials/target-web-role?a=example.yaml paramter with bypass #bugbounty #bugbountytrics #infosec intermediateVIEH Group details a Server-Side Request Forgery (SSRF) extension bypass technique. The exploit targets systems that require file extensions, specifically `.yaml`, for requests. By appending `?a=example.yaml` to the URL, an attacker can bypass these extension requirements, potentially accessing sensitive metadata such as IAM security credentials. This finding is shared as a bug bounty tip. No payout amount is mentioned.
2026-07-25 2026SusluSec: #ssrf extention bypass if it requires the file to end with .yaml do it: url= http://2852039166/latest/meta-data/iam/security-credentials/target-web-role?a=example.yaml paramter with bypass #bugbounty #bugbountytrics # intermediateSusluSec details a Server-Side Request Forgery (SSRF) bypass technique. If a target requires a file to end with the `.yaml` extension, a bypass can be achieved by appending `?a=example.yaml` to the URL. This allows for access to sensitive information, as demonstrated in the example URL targeting AWS metadata. The post emphasizes this as a bug bounty trick.
2026-07-24 2026Next.js Patches Nine Security Flaws Enabling SSRF Middleware Bypass DoS and Internal Endpoint Disclosure newsNext.js has released patches addressing nine security vulnerabilities. These flaws could allow for Server-Side Request Forgery (SSRF), bypass middleware protections, cause Denial of Service (DoS) attacks, and expose internal endpoints. The update is critical for users to protect their applications from these potential exploits. → gbhackers.com
2026-07-23 2026Zimbra Update Patches Critical Vulnerabilities news 1 min readLibrary update patching critical vulnerabilities in Zimbra Collaboration Suite (ZCS) 10.1.20. Includes fixes for command injection in SNMP monitoring, four XSS flaws in the Classic Web Client, CVE-2026-50055 (mail forwarding bypass), CVE-2026-10631 (EWS extension access control), CVE-2026-50054 (mailbox delegation authorization), and an SSRF bug in Nextcloud integration. → securityweek.com
2026-07-23 2026Next.js Patches Nine Security Flaws Enabling SSRF Authentication Bypass and DoS Attacks newsNext.js has released patches for nine security vulnerabilities. These flaws could have allowed attackers to execute Server-Side Request Forgery (SSRF) attacks, bypass authentication mechanisms, and trigger Denial of Service (DoS) conditions. Developers are urged to update their Next.js installations to the latest versions to mitigate these risks and protect their applications. → cybersecuritynews.com
2026-07-23 2026Omar Abbas: Patience pays off! Just secured a solid 4-digit bounty from Grafana via @intigriti Target: Grafana Vuln: SSRF CVSS: 6.8 (Medium) It was a long wait but getting this resolved and rewarded feels great. On to the next hunt! #BugBounty #SSRF #Infosec #Hacking newsOmar Abbas successfully identified a Server-Side Request Forgery (SSRF) vulnerability in Grafana, rated CVSS 6.8 (Medium). He received a 4-digit bug bounty payout from Grafana through the Intigriti platform. Abbas expressed satisfaction with the reward after a period of waiting, signaling his continued pursuit of cybersecurity challenges.
2026-07-23 2026The Daily Tech Feed: Vercel has released critical updates for Next.js addressing nine security vulnerabilities including SSRF and DoS risks. Developers should upgrade to versions 15.5.21 or 16.2.11 immediately to secure their applications. #NextJS #SecurityUpdate #SSRF #DoS #WebSecurity #Vercel newsVercel has released critical updates for Next.js, patching nine security vulnerabilities that pose SSRF and DoS risks. Developers are urged to upgrade immediately to versions 15.5.21 or 16.2.11 to protect their applications. This update is essential for maintaining web security.
2026-07-23 2026Daily CyberSecurity: Three Next.js vulnerabilities (CVE-2026-64645 CVE-2026-64649 CVE-2026-64642) enable Server-Side Request Forgery and middleware bypass. Patch now. #Nextjs #SSRF #CVE202664645 #WebSecurity #Vercel newsThree critical Next.js vulnerabilities (CVE-2026-64645, CVE-2026-64649, CVE-2026-64642) have been identified, allowing attackers to perform Server-Side Request Forgery (SSRF) attacks and bypass middleware. Users of Next.js are strongly advised to patch their systems immediately to mitigate these security risks.
2026-07-22 2026LLM hacking: CVSS 9.9: an SSRF turned Azure OpenAI into a privilege-escalation proxy an authenticated user could reach internal endpoints from its trusted position. Fixed server-side but the same risk lives in any RAG pipeline you run. #AISecurity #SSRF newsA critical Server-Side Request Forgery (SSRF) vulnerability with a CVSS score of 9.9 allowed authenticated users to exploit Azure OpenAI as a privilege-escalation proxy, accessing internal endpoints. While fixed server-side, this risk persists in any Retrieval-Augmented Generation (RAG) pipeline. The post highlights a significant AI security concern related to SSRF attacks in LLM applications.
2026-07-22 2026CVE-2026-63764: SSRF in LMDeploys OpenAI-Compatible API Server news 4 min readAnalysis of CVE-2026-63764, a critical SSRF vulnerability in LMDeploy's OpenAI-compatible API server (≤ 0.14.0), details how unauthenticated attackers can exploit a redirect bypass to pivot to internal services and cloud metadata endpoints like 169.254.169.254. The vulnerability, stemming from insufficient validation of redirect targets, allows attackers to steal credentials and access sensitive internal infrastructure. A fix was merged to main via PR #4734 but has not yet been released in a tagged version, highlighting concerns with maintainer responsiveness. → ox.security
2026-07-21 2026Harshvardhan singh: Massive update to HOLE Introducing Sonar OOB Catcher - A built-in engine to catch blind SSRF DNS & HTTP interactions instantly! 1-Click Exploit Generator Audio Alerts Export Evidence Advanced Filtering Repo: #BugBounty #SSRF #Infosec intermediateHarshvardhan singh has released a significant update to his HOLE tool, introducing the Sonar OOB Catcher. This new engine is designed to instantly detect blind SSRF, DNS, and HTTP interactions. The update also includes a 1-click exploit generator, audio alerts, evidence export, and advanced filtering capabilities, enhancing its utility for bug bounty hunters and security professionals focused on SSRF and infosec.
2026-07-21 2026Hugo | DevOps | Cybersecurity : #CVE-2026-63107 - #SSRF in Limesurvey. Authenticated users can abuse Host header in REST API to access internal services and cloud metadata. #CVSS 7.7. No patch yet - restrict network access and monitor for abuse. #CVEAlert #Limesurvey #infosec #cybersecurity #cybersecuritytips newsCVE-2026-63107 is a critical Server-Side Request Forgery (SSRF) vulnerability in Limesurvey, rated with a CVSS score of 7.7. Authenticated users can exploit the Host header within the REST API to access internal services and cloud metadata. As there is no patch available, users are advised to restrict network access and actively monitor for potential abuse.
2026-07-19 2026Hugo | DevOps | Cybersecurity : #CVE-2026-16125 - #SSRF in Zevorn rt-claw up to 0.2.0. Remote exploitation via http_request argument manipulation. #CVSS 7.3. Public exploit available. Unpatched. Update or mitigate immediately. #CVEalert #infosec #Zevorn #devsecops #devops #sysadmin newsCVE-2026-16125 is a critical Server-Side Request Forgery (SSRF) vulnerability in Zevorn rt-claw versions up to 0.2.0. Attackers can exploit this remotely by manipulating the `http_request` argument. With a CVSS score of 7.3 and a public exploit available, this unpatched vulnerability poses a significant risk. Users are urged to update or implement mitigation strategies immediately.
2026-07-19 2026Swarm Rpc: Rt-claw SSRF on Loopback resources intermediateThis report details a Server-Side Request Forgery (SSRF) vulnerability found in Swarm RPC, specifically the `rt-claw` component. The vulnerability allows attackers to exploit loopback resources. This means an attacker could potentially trick the Swarm RPC into making requests to internal services that are normally inaccessible from the outside. The report does not mention a specific bounty payout amount. → secnews.gr
2026-07-18 2026Shawkat Emad: 5 SSRFs in Postman. Different services. Different techniques. Different impacts. One of them was marked Informative because the internal team found it just 1 day before mebut I'll happily take that as proof I was on the right track. #BugBounty #SSRF #CyberSecurity #HackerOne intermediateShawkat Emad discovered five Server-Side Request Forgery (SSRF) vulnerabilities in Postman, each utilizing different techniques and impacting various services. While one finding was marked "Informative" as the internal team had discovered it a day prior, Emad views this as validation of their investigative approach. The researcher participated in a bug bounty program for this work.
2026-07-17 2026Rapid7 MDR Team Discovers New SonicWall SMA1000 Zero Days being Actively Exploited (CVE-2026-15409 CVE-2026-15410) news 6 min readWriteup detailing the active exploitation of SonicWall SMA1000 zero-day vulnerabilities CVE-2026-15409 and CVE-2026-15410. The analysis covers how an unauthenticated attacker exploits CVE-2026-15409, a server-side request forgery, to establish a tunnel to localhost services, enabling exploitation of less secure internal services. This is followed by privilege escalation to root via CVE-2026-15410, a path traversal vulnerability in the `remove_hotfix` workflow. The writeup includes technical details on the exploitation chain and observed threat actor tactics like credential harvesting and direct lateral movement into internal networks. → rapid7.com
2026-07-16 2026Critical SonicWall SSRF Zero-Day Opens WebSocket Tunnel to Internal Services newsA critical Server-Side Request Forgery (SSRF) vulnerability has been discovered in SonicWall's Secure Remote Access (SRA) and Secure Mobile Access (SMA) products. This zero-day flaw allows attackers to establish a WebSocket tunnel to internal services. This means attackers can bypass firewalls and access sensitive internal resources that are not exposed to the public internet. The vulnerability can be exploited remotely, posing a significant risk to organizations using these SonicWall devices. → cyberpress.org
2026-07-16 2026Daily CyberSecurity: CVE-2026-15378 is a blind SSRF in Red Hat OpenShift AI. The guardrails-detectors flaw exposes cloud credentials and Kubernetes secrets. #OpenShiftAI #CVE202615378 #SSRF #RedHat #Kubernetes newsCVE-2026-15378 is a blind Server-Side Request Forgery (SSRF) vulnerability discovered in Red Hat OpenShift AI. Specifically, the "guardrails-detectors" component is affected. This flaw allows for the potential exposure of sensitive cloud credentials and Kubernetes secrets.
2026-07-16 2026Critical SonicWall SMA 1000 SSRF and Remote Code Execution Flaws Actively Exploited in the Wild newsSonicWall SMA 1000 devices are vulnerable to critical Server-Side Request Forgery (SSRF) and Remote Code Execution (RCE) flaws, which are actively being exploited. These vulnerabilities allow attackers to potentially gain unauthorized access and control over affected systems. Further details can be found at the provided link. → gbhackers.com
2026-07-15 2026Two SonicWall SMA 1000 Zero-Days Exploited One Could Enable Admin Commands news 1 min readAnalysis of CVE-2026-15409 and CVE-2026-15410, two zero-day vulnerabilities in SonicWall SMA 1000 series appliances. CVE-2026-15409 is a critical SSRF flaw, while CVE-2026-15410 allows post-authentication arbitrary command execution. These flaws have been actively exploited and added to CISA's KEV catalog, requiring urgent patching. Indicators of compromise include specific log entries and configuration file anomalies. → thehackernews.com
2026-07-15 2026Daily CyberSecurity: SonicWall SMA1000 SSRF flaw CVE-2026-15409 (CVSS 10.0) is exploited in the wild. Upgrade to hotfix 12.4.3-03453 or 12.5.0-02835 now. #SonicWall #SMA1000 #SSRF #CVE202615409 #CyberSecurity newsA critical Server-Side Request Forgery (SSRF) vulnerability, CVE-2026-15409, with a CVSS score of 10.0, has been discovered in SonicWall SMA1000 devices and is actively being exploited in the wild. Organizations using these devices are strongly urged to upgrade immediately to hotfix 12.4.3-03453 or 12.5.0-02835 to mitigate this severe security threat.
2026-07-14 2026xHackInSeconds: URL field accepted internal addresses. 169.254.169.254. IAM role credentials in the response. Full S3 and RDS access. #infosec #cloud #ssrf intermediateA Server-Side Request Forgery (SSRF) vulnerability was discovered where a URL field accepted internal IP addresses, including 169.254.169.254. This allowed attackers to potentially retrieve IAM role credentials. Successful exploitation could grant full access to AWS S3 buckets and RDS databases.
2026-07-14 2026Daily CyberSecurity: CVE-2026-53513 is a Better Auth SSRF flaw (CVSS 9.6) in the SSO plugin. It exposes cloud metadata and enables account takeover. Patch to 1.6.11 now. #BetterAuth #SSRF #CVE202653513 #SSO #OIDC newsCVE-2026-53513 is a critical SSRF vulnerability in the SSO plugin, rated CVSS 9.6. This flaw, categorized as "Better Auth," allows attackers to access sensitive cloud metadata, potentially leading to account takeovers. Users are strongly advised to update the plugin to version 1.6.11 immediately to mitigate this risk.
2026-07-13 2026Abdullah Kareem: Landed a CVE in CVE-2026-61826.The Plex OAuth API namespace shipped with no auth. Every other endpoint checks an API key. So anyone on the network could wipe your Plex config bind their own Plex token to your box and pivot into SSRF. #CVE #appsec #SSRF newsAbdullah Kareem discovered a critical vulnerability in Plex's OAuth API, identified as CVE-2026-61826. The API namespace lacked authentication, allowing any user on the network to access it. This vulnerability enabled attackers to wipe Plex configurations, bind their own Plex tokens to a user's system, and ultimately execute Server-Side Request Forgery (SSRF) attacks.
2026-07-13 2026Attackers Combine MCP Recon With Cloud Metadata SSRF to Steal Service Account Tokens advancedAttackers are exploiting a combination of **MCP recon** (likely referring to an attacker reconnaissance technique) and **Cloud Metadata SSRF** (Server-Side Request Forgery) to steal service account tokens. This attack allows them to gain unauthorized access to cloud resources. The content discusses the methods used by attackers and the implications of such breaches, highlighting a significant security vulnerability in cloud environments. No specific bug bounty payout amount is mentioned in the provided text. → gbhackers.com
2026-07-12 2026AstrBot MCP CVE-2026-15501: SSRF in AI Framework newsAstrBot MCP CVE-2026-15501 is a Server-Side Request Forgery (SSRF) vulnerability found in an AI framework. The vulnerability, detailed in the provided link, allows an attacker to potentially make unauthorized requests from the server. No bug bounty payout amount is mentioned in the content. → secnews.gr
2026-07-11 2026ZOWEH: XXE LAB SOLVED: Exploiting XXE to perform SSRF attacks Goal: Use XXE to access AWS metadata endpoint Method: External entity pointing to #XXE #SSRF intermediateThis content details the successful exploitation of an XML External Entity (XXE) vulnerability to perform a Server-Side Request Forgery (SSRF) attack. The objective was to access the AWS metadata endpoint. The method involved utilizing an external entity to achieve this. The provided link points to further information on this XXE and SSRF exploit. No bug bounty payout amount is mentioned.
2026-07-10 2026Sudarshana: Cornered a headless PDF export that fetched user URLs. Pointed it at 169.254.169.254/latest/meta-data/iam/security-credentials/ and it echoed a role's temp keys. IMDSv2 blocks this: no PUT token no answer. Allowlist the hosts you call denylists miss the IP. #SSRF #IMDSv2 intermediateA security researcher, Sudarshana, discovered a Server-Side Request Forgery (SSRF) vulnerability in a headless PDF export. By directing the export to a specific AWS IMDSv2 endpoint (169.254.169.254/latest/meta-data/iam/security-credentials/), they successfully retrieved temporary AWS credentials. The researcher notes that IMDSv2's default configuration, which requires a PUT token, prevents this exploitation. They recommend using host allowlists rather than denylists to mitigate such vulnerabilities, as denylists may miss specific IPs.
2026-07-10 2026Daily CyberSecurity: Four Apache Camel vulnerabilities allow header injection server-side request forgery secret disclosure and an authentication bypass. Patch to 4.21.0 now. #ApacheCamel #HeaderInjection #SSRF #CyberSecurity #Vulnerability #InfoSec newsFour critical vulnerabilities have been discovered in Apache Camel, affecting versions prior to 4.21.0. These vulnerabilities enable header injection, server-side request forgery (SSRF), secret disclosure, and authentication bypass. Users are strongly advised to update to version 4.21.0 immediately to patch these security flaws and protect their systems.
2026-07-10 2026Roundcube Webmail 1.7.2 Fixes Zero-Click XSS SSRF Bypass and DoS Flaws newsRoundcube Webmail 1.7.2 addresses critical security vulnerabilities, including a zero-click Cross-Site Scripting (XSS) flaw, a Server-Side Request Forgery (SSRF) bypass, and Denial of Service (DoS) issues. The update provides essential patches to protect users from these threats. → cyberpress.org
2026-07-09 2026Dev: SSRF: Your ticket to internal networks & cloud metadata! Misconfigs in web apps let you fetch backend resources. Check URL params API endpoints. Ffuf & Burp are your friends. Master it! #SSRF #BugBounty beginnerThis content explains Server-Side Request Forgery (SSRF) vulnerabilities. SSRF attacks exploit web application misconfigurations to allow attackers to access internal networks and cloud metadata by fetching backend resources. Key areas to investigate for SSRF include URL parameters and API endpoints. Tools like Ffuf and Burp Suite are recommended for identifying these vulnerabilities. The post encourages mastering SSRF for bug bounty hunting. No specific payout amount is mentioned.
2026-07-09 2026Daily CyberSecurity: Five Apache Camel vulnerabilities enable server-side request forgery and a Keycloak authentication bypass. Upgrade to 4.21.0 4.18.3 or 4.14.8. #ApacheCamel #SSRF #AuthBypass #Deserialization #Keycloak #InfoSec newsFive vulnerabilities in Apache Camel have been disclosed, enabling server-side request forgery (SSRF) and an authentication bypass in Keycloak. Users are strongly advised to upgrade their Apache Camel installations to versions 4.21.0, 4.18.3, or 4.14.8 to mitigate these security risks. The vulnerabilities also involve deserialization flaws.
2026-07-08 2026Hugo | DevOps | Cybersecurity : #CVE-2026-57573 - #SSRF in #Crawl4AI #Docker #API. Streaming paths skip destination validation. Unauthenticated remote access to internal networks. #CVSS 8.6. No patch available. Mitigate immediately. #CVE #infosec #k8s #devops #devsecops #sysadmin #kubernetes newsCVE-2026-57573 is a critical Server-Side Request Forgery (SSRF) vulnerability in the Crawl4AI Docker API. It allows unauthenticated remote attackers to access internal networks due to streaming paths skipping destination validation. With a CVSS score of 8.6, this vulnerability is severe. No patch is currently available, making immediate mitigation crucial for DevOps, cybersecurity, and system administration professionals.
2026-07-08 2026Graven - Herald.codes: Hello tout le monde ! Nouvelle video Nouveau format #ssrf #owasp #python newsThis content announces a new video from Graven - Herald.codes in a new format, focusing on Server-Side Request Forgery (SSRF), OWASP, and Python. The post includes a link to the video. No bug bounty payout amounts are mentioned.
2026-07-08 2026Daily CyberSecurity: New pretix vulnerabilities include a critical session takeover chain (CVE-2026-13602) and an SSRF API key leak. Update to 2026.5.3 now. #pretix #SessionTakeover #SSRF #CyberSecurity #CVE202613602 #CVE202613603 newsPretix has released version 2026.5.3 to address two critical vulnerabilities. CVE-2026-13602 is a session takeover chain, and another vulnerability allows for an SSRF API key leak. Users are urged to update immediately to mitigate these security risks.
2026-07-08 2026The HTTP 303 SSRF Hack : From Python HTTP Client Defaults to AWS Credential Exfiltration. intermediate 13 min read SecretsWriteup detailing an HTTP 303 SSRF vulnerability that escalates to AWS credential exfiltration. This exploit chains a user-controlled `token_uri` field in BigQuery service account credentials, an HTTP client with default redirect handling, and the AWS Instance Metadata Service (IMDS). By configuring a server to respond with an HTTP 303 redirect, a POST request to IMDS is implicitly converted to a GET request, allowing the attacker to retrieve temporary IAM credentials for the Kubernetes worker node. → infosecwriteups.com

Frequently Asked Questions

What is SSRF and why is it critical?
Server-Side Request Forgery (SSRF) tricks the server into making HTTP requests to unintended destinations. It is critical because it can access internal services, cloud metadata endpoints (169.254.169.254), and private networks that are not reachable from the internet, potentially leading to full cloud account compromise.
What are common SSRF bypass techniques?
Common bypasses include DNS rebinding, IP encoding tricks (decimal, octal, hex, IPv6), URL parser inconsistencies between the filter and the HTTP library, open redirect chains, and alternative URL schemes. Attackers also use shortened URLs and domain names that resolve to internal IPs.
Where does SSRF commonly appear?
SSRF is frequently found in webhook integrations, URL preview and unfurling features, PDF and screenshot generators, image/file processing pipelines, and any functionality where the application fetches a remote resource based on user-supplied URLs.

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