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Remote Code Execution (RCE) Resources

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

Remote Code Execution (RCE)

Remote Code Execution (RCE) is the ability for an attacker to execute arbitrary commands or code on a target machine or process. RCE vulnerabilities represent the most critical class of security bugs — they give an attacker the same level of control as a system administrator.

RCE can manifest through many different attack vectors. Command injection occurs when user input is passed unsanitized to system shell commands. Deserialization attacks exploit unsafe object reconstruction in languages like Java, PHP, Python, and .NET. Server-Side Template Injection (SSTI) allows code execution through template engines like Jinja2, Twig, or Freemarker. File upload vulnerabilities can lead to RCE when executable files bypass upload filters and are served by the web server.

In modern applications, RCE often appears in less obvious places: expression language injection in Java frameworks, prototype pollution leading to code execution in Node.js, unsafe use of eval() or dynamic code loading, and vulnerabilities in PDF generators, image processors, and other libraries that shell out to system commands.

RCE bugs consistently command the highest payouts in bug bounty programs because the impact is total system compromise. Chaining lower-severity bugs into RCE — such as SSRF to cloud metadata to code execution — is a common and highly rewarded approach.

This page collects RCE techniques, exploitation writeups, and research across all major platforms and languages.

From Wikipedia

Date Added Link Excerpt
2026-06-11 NEW 2026Claroty finds authentication bypass RCEflaws in Vertiv UPS management cards that could disrupt data center operations advancedClaroty finds authentication bypass, RCE flaws in Vertiv UPS management cards that could disrupt data center operations https://ift.tt/MqaXLNb
2026-06-11 NEW 2026Oracle Emergency Security Update to Fix Critical RCE Vulnerability newsOracle has released an emergency security update addressing a critical Remote Code Execution (RCE) vulnerability. This vulnerability, if exploited, could allow attackers to gain unauthorized control of affected systems. Users are strongly advised to apply this patch as soon as possible to mitigate the risk of compromise. No specific payout amount for bug bounties was mentioned in the provided content. → cybersecuritynews.com
2026-06-11 NEW 2026Hackers Exploit Langflow Vulnerability for Remote Code Execution newsA critical vulnerability has been discovered in Langflow, a popular tool for developing and deploying large language model applications. Attackers can exploit this flaw to achieve remote code execution on affected systems. This allows malicious actors to gain unauthorized access and control over vulnerable servers, posing a significant security risk to users and organizations relying on Langflow. Further details about the exploit and its impact can be found at the provided link. No specific bounty payout amount was mentioned. → securityweek.com
2026-06-11 NEW 2026Attackers Exploit Critical Langflow Flaw for Remote Code Execution newsAttackers are exploiting a critical vulnerability in Langflow, a tool for building and managing LLM applications, enabling remote code execution. This flaw allows unauthorized individuals to gain control of affected systems. The exact impact and affected versions are still being investigated, but the severity suggests a significant security risk for users of the platform. Further details are available at the provided link. → gbhackers.com
2026-06-11 NEW 2026Critical OpenSSL Vulnerabilities Enable Remote Code Execution Attacks newsCritical vulnerabilities have been discovered in OpenSSL, allowing for remote code execution. This means attackers can potentially gain full control of affected systems without needing physical access. The severity of these flaws means immediate patching and updates are crucial for all users of OpenSSL. Further details and mitigation strategies can be found at the provided link. No specific bounty payout amount was mentioned in the content. → cybersecuritynews.com
2026-06-11 NEW 2026Patch Tuesday June 2026: 211 Fixes Critical CVEs newsMicrosoft's June 2026 Patch Tuesday addresses 211 vulnerabilities, including critical ones. The update aims to patch security flaws across various Microsoft products, enhancing overall system security. Further details about the specific CVEs and their impact are available via the provided link.
2026-06-11 NEW 2026Max severity Ivanti Sentry vulnerability now exploited in attacks newsA critical vulnerability in Ivanti Sentry is now being actively exploited in attacks. This high-severity flaw has been confirmed to be in the wild, posing a significant risk to users of the Ivanti Sentry product. Details on the specific nature of the exploit and the potential impact are still emerging, but the active exploitation indicates a serious security threat. Users are urged to take immediate action to patch or mitigate this vulnerability to protect their systems. No bounty payout amount was mentioned. → bleepingcomputer.com
2026-06-11 NEW 2026Ivanti Endpoint Manager Mobile Vulnerability Enables Remote Code Execution Attacks newsA critical vulnerability in Ivanti Endpoint Manager Mobile allows attackers to achieve remote code execution (RCE) without authentication. This flaw could enable widespread compromise of systems. The vulnerability was discovered and reported, but no specific payout amount was mentioned. Users are urged to update their software to patch this severe security risk. → cybersecuritynews.com
2026-06-11 NEW 2026CodeBreach: Infiltrating the AWS Console Supply Chain and Hijacking AWS GitHub Repositories via CodeBuild advanced Supply ChainWiz Research discovered a critical supply chain vulnerability that abused a CodeBuild misconfiguration to take over key AWS GitHub repositories - including the JavaScript SDK powering the AWS Console. → wiz.io
2026-06-11 NEW 202610 year old critical vulnerability in phpBB affecting tens of millions of users across thousands of forums news AuthNA critical unauthenticated authentication bypass vulnerability has been discovered in phpBB by Aikido Security. This flaw, present since 2014, allows any user to take over any account with a single HTTP request. The vulnerability impacts tens of millions of users across thousands of forums, posing a significant security threat. → aikido.dev
2026-06-10 NEW 2026This Microsoft Defender zero-day could give hackers unprecedented access to your system news 2 min readWriteup of RoguePlanet, a race-condition zero-day vulnerability impacting Windows 10 and 11, which grants SYSTEM privileges. Disclosed by Chaotic Eclipse, this is the researcher's seventh such finding, following previous issues like BlueHammer, RedSun, UnDefend, YellowKey, GreenPlasma, and MiniPlasma. ThreatLocker confirmed the exploit's viability, noting that application allowlisting can serve as a defense against its execution. → techradar.com
2026-06-10 NEW 2026Ivanti Sentry Flaw Allows Code Execution as Root newsA critical vulnerability has been discovered in Ivanti Sentry, a product used for mobile device management. This flaw allows attackers to execute arbitrary code with root privileges on affected systems. This significant security risk could lead to complete compromise of the device. Further details and potential mitigation strategies are being investigated. → securityboulevard.com
2026-06-10 NEW 2026Critical Ivanti Sentry flaw allows root-level remote code execution (CVE-2026-10520) news 2 min readAnalysis of CVE-2026-10520, an OS command injection vulnerability in Ivanti Sentry, details how unauthenticated attackers can achieve root-level remote code execution. This critical flaw, along with CVE-2026-10523 (authentication bypass), affects versions prior to 10.5.2, 10.6.2, and 10.7.1. WatchTowr researchers provided technical details and a script for detecting exposure, noting the vulnerability stems from an unauthenticated API accepting internal configuration commands. → helpnetsecurity.com
2026-06-10 NEW 2026Ivanti Fortinet and SAP Release Patches for Multiple Critical Vulnerabilities news 2 min readPatches address critical vulnerabilities in Ivanti Sentry (CVE-2026-10520, CVE-2026-10523), FortiSandbox (CVE-2026-25089), and SAP products like NetWeaver and Commerce Cloud (CVE-2026-44748, CVE-2026-27671, CVE-2026-22732, CVE-2026-40128). These flaws enable arbitrary code execution, command injection, authentication bypass, and directory traversal, potentially leading to remote code execution and information disclosure. → thehackernews.com
2026-06-10 NEW 2026Unpatched Langflow Flaw CVE-2026-5027 Exploited for Unauthenticated RCE news 1 min readWriteup of CVE-2026-5027, a path traversal vulnerability in Langflow exploited for unauthenticated RCE. The flaw in the `POST /api/v2/files` endpoint allows attackers to write files to arbitrary locations using '../' sequences. Exploitation can lead to arbitrary code execution, especially since Langflow's auto-login is enabled by default. This follows other exploited Langflow CVEs like CVE-2026-0770 and CVE-2025-34291. → thehackernews.com
2026-06-10 NEW 2026OpenSSL patches critical vulnerability enabling remote code execution news 2 min readLibrary patches address 18 vulnerabilities, including critical CVE-2026-45447, a heap user-after-free bug in PKCS#7 verification that can lead to remote code execution. Moderate flaws allow decryption and forgery, with one bypassing authentication via fake certificates. Low-severity issues also resolved, impacting DoS and private key security.
2026-06-10 NEW 2026Microsoft Releases June 2026 Patch Tuesday Updates newsMicrosoft's June 2026 Patch Tuesday updates are now available. These regular security patches address various vulnerabilities and aim to improve the overall security posture of Microsoft products. Users are advised to install these updates promptly to protect their systems from potential threats.
2026-06-10 NEW 2026Ivanti urges Sentry users to patch two critical bugs newsIvanti is urging users of its Sentry product to immediately patch two critical vulnerabilities. Exploitation of these flaws could lead to significant security risks. The company has not disclosed specific payout amounts for any bug bounty related to these issues. Users are strongly advised to apply the necessary updates to protect their systems. → theregister.com
2026-06-10 NEW 2026Record Microsoft Patch Tuesday fresh zero-day news 4 min readLibrary addressing a record-breaking Microsoft Patch Tuesday, featuring fixes for nearly 200 vulnerabilities. Highlights include CVE-2026-42897 (Exchange Server), CVE-2026-45586 (CTFMON privilege escalation), CVE-2026-49160 (HTTP.sys denial of service), and multiple Windows BitLocker bypasses. The surge in AI-assisted vulnerability discovery necessitates rapid patch deployment to combat N-day threats like those demonstrated by Anthropic's Frontier Red Team. → helpnetsecurity.com
2026-06-10 NEW 202610 year old critical vulnerability in phpBB affecting tens of millions of users across thousands of forums news 2 min readTool discovery by Aikido Attack identified a critical Authentication Bypass vulnerability in phpBB, potentially leading to Remote Code Execution. This flaw impacts versions up to 3.3.16 and 4.0.0-a2, and was promptly patched in version 3.3.17 following a rapid disclosure via HackerOne. Exploitation can grant unauthorized session access, exposing private messages or full administrative control. → aikido.dev
2026-06-10 NEW 2026Microsoft Patches Record 206 Flaws Including Three Zero-Days and Critical RCE Bugs news 4 min readReference detailing Microsoft's June 2026 security update, patching 206 vulnerabilities including three zero-days: CVE-2026-45586 (GreenPlasma), CVE-2026-50507 (bitskrieg), and CVE-2026-49160 (HTTP2/Bomb). This release addresses critical remote code execution flaws like CVE-2026-45657, CVE-2026-47291, and CVE-2026-44815, alongside a Windows BitLocker bypass (CVE-2026-45585) with a YellowKey PoC. The surge in patches is linked to AI-assisted vulnerability discovery. → thehackernews.com
2026-06-10 NEW 2026Hugging Face Transformers flaw enabled remote code newsA critical vulnerability in the Hugging Face Transformers library allowed for remote code execution (RCE). This flaw, detailed in a recent security advisory, could have enabled attackers to compromise systems by exploiting specific functionalities within the library. Hugging Face has released patches to address this security risk, urging users to update their installations promptly to prevent potential exploitation. Further details on the affected versions and remediation steps are available through the provided link.
2026-06-10 NEW 2026Ivanti: Max severity Sentry flaw allows code execution as root news 2 min readWriteup of CVE-2026-10520, a maximum-severity OS command injection vulnerability in Ivanti Sentry, allowing root code execution. Patched in Sentry versions R10.5.2, R10.6.2, and R10.7.1, this flaw joins CVE-2026-10523, an authentication bypass for rogue admin account creation. Ivanti has no evidence of exploitation for these flaws, but advises immediate upgrades due to past targeting of Ivanti products. → bleepingcomputer.com
2026-06-10 NEW 2026Unauthenticated RCE as QSECOFR via IBM i Management Central — port 5555, client-controlled verify flag, no credentials required (V7R4 and earlier) news 10 min readTool for unauthenticated Remote Code Execution on IBM i Management Central (port 5555) targeting V7R4 and earlier. This tool exploits a vulnerability in the custom MGTC packet protocol, specifically within the `McPacketableAuthenticationData` structure. By manipulating the `verify` flag to skip validation and providing a crafted `userId`, an attacker can execute arbitrary CL commands as the QSECOFR user without requiring credentials. The exploit bypasses authentication checks by setting `verify` to 0 and utilizing specific class IDs like `McStartRequest` with `McEndpointManagedCmdData` and `McManagedCmdDefinition`.
2026-06-10 NEW 2026Security Advisory: Critical RCE Vulnerabilities in React Server Components (CVE-2025-55182) news 4 min read DeserAdvisory detailing CVE-2025-55182, a critical RCE vulnerability affecting React 19 and Next.js versions through unsafe deserialization in the React Server Components (RSC) "Flight" protocol. Exploitation requires a single crafted HTTP request and impacts any framework embedding RSC, including Vite and Parcel plugins. Immediate patching of React and Next.js is recommended, alongside validation of third-party frameworks and implementation of defense-in-depth controls like runtime sandboxing and WAF rules. → snyk.io
2026-06-10 NEW 2026Wait, binding.gyp Can Do What? Exploring npm's Weirdest Build System intermediate 15 min read Supply ChainLibrary for identifying vulnerabilities in `binding.gyp` files, which `npm` executes during package installation. This library explores how attackers can abuse `binding.gyp`'s command expansion feature and Python `eval()` sandbox to execute arbitrary code, as demonstrated by the Miasma worm which exploited Red Hat packages and others like `@vapi-ai/server-sdk`. It details techniques for escaping the `eval()` sandbox to achieve arbitrary code execution, even when no explicit lifecycle scripts are present in `package.json`. → aikido.dev
2026-06-10 NEW 2026Six Proto6 Vulnerabilities in protobuf.js Expose Node.js Apps to RCE and DoS news 2 min readWriteup detailing six Proto6 vulnerabilities in protobuf.js (CVE-2026-44289 through CVE-2026-44295), impacting Node.js applications. These flaws, stemming from improper schema and metadata handling, can lead to remote code execution (RCE) and denial-of-service (DoS) through unbounded recursion, unsafe option paths, prototype pollution, and crafted field names or schema names. Exploitation is particularly concerning in data and AI ecosystems, affecting tools like Baileys and CI/CD pipelines, with CVE-2026-44291 posing the most severe RCE risk via prototype pollution. → thehackernews.com
2026-06-10 NEW 2026More Evidence That Words Don't Mean What We Thought They Meant (Ivanti Sentry Pre-Auth OS Command Injection CVE-2026-10520) news 8 min readAnalysis of CVE-2026-10520 in Ivanti Sentry reveals a critical pre-authenticated OS command injection vulnerability. Exploiting this flaw allows remote, unauthenticated attackers to achieve root-level remote code execution by crafting specific input strings processed by the `handleMessage` endpoint. The vulnerability stems from improper handling of user-supplied `message` parameters, which are parsed and directly passed into internal commands, enabling the injection of arbitrary OS commands. This advisory details the affected versions and the technical path leading to this high-severity flaw. → labs.watchtowr.com
2026-06-09 NEW 2026Critical Veeam RCE flaw Lets Low-Privilege Users Take Over Backup Servers news 1 min readWriteup of CVE-2026-44963, a critical RCE vulnerability in Veeam Backup & Replication 12.x, allowing low-privileged domain users to compromise backup servers. This flaw, with a CVSS v4 score of 9.4, could enable attackers to delete or encrypt backups, steal data, and extract credentials for further network compromise. A previous critical vulnerability, CVE-2025-23121, was patched in June 2025. → securityaffairs.com
2026-06-09 NEW 2026CVE-2026-45247: Critical Magento RCE Vulnerability in Mirasvit Cache Warmer newsA critical Remote Code Execution (RCE) vulnerability, CVE-2026-45247, has been discovered in the Mirasvit Cache Warmer extension for Magento. This flaw allows attackers to execute arbitrary code on the affected Magento installations. Users are strongly advised to update their Mirasvit Cache Warmer extension to the latest version immediately to mitigate this security risk. → securityboulevard.com
2026-06-09 NEW 2026Redis RCE Vulnerability Puts Servers at Risk of Remote Code Execution newsA critical Redis vulnerability allows for remote code execution (RCE), potentially compromising servers. Attackers can exploit this flaw to run arbitrary commands on affected systems. The vulnerability poses a significant security risk to any server running an unpatched Redis instance. Users are strongly advised to update their Redis installations to the latest version to mitigate this threat and prevent unauthorized access and control. → securityboulevard.com
2026-06-09 NEW 2026Critical Veeam Vulnerability Allows RCE Attacks on Backup Servers newsA critical vulnerability in Veeam Backup Enterprise Manager (VBEM) allows unauthenticated remote code execution (RCE). Attackers can exploit this flaw by crafting a malicious network request, potentially leading to complete system compromise. This affects all supported versions of VBEM. Users are strongly advised to update to the latest patch to mitigate this severe security risk. No specific bounty payout amount was mentioned. → cybersecuritynews.com
2026-06-09 NEW 2026Veeam Backup & Replication RCE Flaw Lets Domain Users Run Remote Code newsWriteup of CVE-2026-44963, a critical remote code execution flaw in Veeam Backup & Replication impacting version 12.3.2.4465 and earlier. This vulnerability, with a CVSS score of 9.4, allows authenticated domain users to execute code on the Backup Server. Veeam has released patches, addressing the issue in version 12.3.2.4854, and noting that version 13.x builds are not affected due to architectural changes. → thehackernews.com
2026-06-09 NEW 2026New Veeam vulnerability exposes backup servers to RCE attacks news 2 min readWriteup detailing CVE-2026-44963, a critical remote code execution flaw in Veeam Backup & Replication (VBR) versions 12.3.2.4465 and earlier, which allows authenticated domain users to compromise backup servers. This vulnerability impacts domain-joined installations, a configuration that deviates from Veeam's best practices. The article highlights the history of VBR flaws being exploited by ransomware gangs like Akira, Fog, Frag, FIN7, and Cuba, and notes that reverse-engineering of patches is likely to occur. Veeam has released patches in version 12.3.2.4854. → bleepingcomputer.com
2026-06-09 NEW 2026Vulnerabilities in Logseq software news 1 min readWriteup on CVE-2026-9279 and related vulnerabilities in Logseq software. This analysis details how an IPC handler bypass via shell metacharacters in arguments to `child_process.spawn` allows arbitrary shell command execution. Additional vulnerabilities include improper path validation in preload scripts leading to file manipulation, stored XSS in `package.json`'s name field, and a sandbox escape flaw enabled by a disabled CSP, allowing arbitrary JavaScript execution in the host context. Version v0.10.15 was confirmed vulnerable.
2026-06-09 NEW 2026Active Exploitation Alert: CVE-2026-42271 and CVE-2026-48710Unauthenticated RCE in LiteLLM AI Gateway via Starlette Host Header Bypass news 5 min readWriteup details active exploitation of CVE-2026-42271, an unauthenticated RCE in LiteLLM AI Gateway, by chaining it with a Starlette Host header bypass (CVE-2026-48710). This chain enables attackers to execute arbitrary commands on vulnerable systems, leading to full compromise. Exploitation is widespread, with the vulnerabilities listed on CISA's KEV catalog. The article explains the technical exploitation flow and suggests upgrading LiteLLM to version 1.83.7 and Starlette to 1.0.1 as mitigation. → rescana.com
2026-06-09 NEW 2026Hackers Exploiting LiteLLM RCE Vulnerability in the Wild to Run Arbitrary Commands newsAttackers are actively exploiting a critical Remote Code Execution (RCE) vulnerability in LiteLLM, an open-source library that simplifies LLM integration. This flaw allows them to run arbitrary commands on affected systems, posing a significant security risk. Users are strongly advised to update LiteLLM to the latest version immediately to patch this vulnerability and protect their applications from malicious exploitation. → cybersecuritynews.com
2026-06-09 NEW 2026LiteLLM And Starlette Bugs Combine For Critical RCE Risk news 1 min readWriteup detailing the chained exploitation of LiteLLM's CVE-2026-42271 and Starlette's CVE-2026-48710. This combination allows unauthenticated remote code execution, enabling attackers to steal AI credentials and compromise infrastructure. The vulnerability affects LiteLLM versions 1.74.2 through 1.83.6 and requires upgrading LiteLLM to 1.83.7+ and Starlette to 1.0.1+. → opensourceforu.com
2026-06-09 NEW 2026Claude Mythos: Preparing for a World Where AI Finds and Exploits Vulnerabilities Faster Than Ever advanced 10 min read AIAnalysis of Anthropic's Claude Mythos, an AI model capable of autonomously discovering zero-day vulnerabilities and generating exploits. This capability signals a future where AI-driven vulnerability research accelerates, leading to more CVEs in the short term and necessitating an AI-focused AppSec program for defense in the medium-to-long term. The trend suggests attackers will leverage AI, requiring defenders to adapt by integrating AI into security tooling and workflows to proactively identify and remediate flaws. → wiz.io
2026-06-09 NEW 2026Securing AI Applications From Inception to Deployment intermediate 5 min read AILibrary extending Wiz AI-APP to the code layer, Wiz Code integrates with IDEs and the CLI to detect AI-specific risks during development. It validates exploitability at runtime using an AI attacker, Red Agent, then automates remediation with Green Agent, generating context-aware fixes and delegating tasks to coding agents. This unified approach aligns with OWASP Top 10 for LLM Applications 2025 and Agentic Applications 2026, securing the entire AI application lifecycle from inception to production. → wiz.io
2026-06-09 NEW 2026Securing GitHub: Wiz Research uncovers Remote Code Execution in GitHub.com and GitHub Enterprise Server (CVE-2026-3854) news 10 min readWriteup of CVE-2026-3854, an RCE vulnerability in GitHub's git infrastructure, identified by Wiz Research. The flaw in the X-Stat header parsing allowed authenticated users to execute arbitrary commands on backend servers via a crafted git push. Exploitation leverages injection of fields like `rails_env`, `custom_hooks_dir`, and `repo_pre_receive_hooks` to bypass sandboxing and achieve command execution. This impacts both GitHub.com and GitHub Enterprise Server, with immediate patching recommended for GHES customers. → wiz.io
2026-06-09 NEW 2026How a Poisoned Security Scanner Became the Key to Backdooring LiteLLM news 9 min read Python Supply ChainLibrary detailing the compromise of the `litellm` Python package via a poisoned Trivy security scanner. The attack chain, attributed to threat actor TeamPCP, involved rewriting Git tags in Trivy's GitHub Action, leading to credential exfiltration used to publish malicious `litellm` versions. These versions utilized source injection and a `.pth` file for payload delivery, a technique mapped to MITRE ATT\&CK T1546.018. The payload performed extensive data collection, encrypted and exfiltrated information, and established local persistence and Kubernetes lateral movement. → snyk.io
2026-06-09 NEW 2026Axios npm Package Compromised: Supply Chain Attack Delivers Cross-Platform RAT news 7 min read Supply ChainLibrary that details a supply chain attack on the popular npm package `axios`. Malicious versions, `1.14.1` and `0.30.4`, were briefly published, including a hidden dependency `plain-crypto-js` which deployed a cross-platform RAT. The attack leveraged a compromised maintainer account and a purpose-built malicious dependency with a postinstall script that obfuscated its presence and delivered platform-specific payloads for macOS, Windows, and Linux. → snyk.io
2026-06-09 NEW 202621 0-Day Vulnerabilities in FFmpeg Enables Remote Code Execution Attacks newsTwenty-one zero-day vulnerabilities have been discovered in FFmpeg, a widely used multimedia framework. These flaws allow attackers to execute arbitrary code remotely on vulnerable systems. The vulnerabilities could be exploited to compromise systems processing multimedia files, potentially leading to data theft or further system manipulation. Users and organizations relying on FFmpeg are urged to update to the latest versions to patch these critical security holes and prevent potential attacks. → cybersecuritynews.com
2026-06-09 NEW 2026Everest Forms Vulnerability Exploited to Hack WordPress Sites news 1 min readLibrary for securing WordPress sites. Everest Forms Pro, a popular contact and survey plugin, has a critical vulnerability (CVE-2026-3300, CVSS 9.8) allowing unauthenticated attackers to inject and execute arbitrary PHP code via the Complex Calculation feature. This enables attackers to create admin accounts or deploy web shells, resulting in site takeover. Exploitation in the wild began April 13th, with attackers creating admin accounts like 'diksimarina'. Users should update to Everest Forms Pro version 1.9.13 or newer. → securityweek.com
2026-06-08 NEW 2026Ubiquiti UniFi OS server vulnerabilities allow unauthenticated remote code execution newsWriteup of chained Ubiquiti UniFi OS server vulnerabilities (CVE-2026-34908, CVE-2026-34909, CVE-2026-34910) allowing unauthenticated remote code execution and root privilege escalation. Bishop Fox researchers demonstrated how improper access control and path traversal bypass authentication, leading to command injection and trivial privilege escalation via passwordless sudo. A detection script is available to identify vulnerable instances. → scworld.com
2026-06-08 NEW 2026Gogs patches critical zero-day enabling remote code execution news 3 min readLibrary addressing a critical zero-day argument injection vulnerability in Gogs, allowing authenticated, non-admin users to achieve remote code execution. This flaw, affecting versions up to 0.14.2 and 0.15.0+dev, enables attackers to compromise servers, access private repositories, steal credentials, and alter source code. Rapid7 researcher Jonah Burgess discovered and reported the vulnerability, which is exploitable on default configurations with open registration and no repository creation limits. The fix, implemented in Gogs version 0.14.3, addresses a similar attack vector to previously patched issues like CVE-2024-39933 and CVE-2025-8110. → bleepingcomputer.com
2026-06-08 NEW 2026Critical UniFi OS RCE Chain Grants Root Access Without Credentials advancedA critical remote code execution (RCE) vulnerability chain has been discovered in UniFi OS, allowing attackers to gain root access without needing credentials. This severe flaw bypasses authentication, enabling full system compromise. Details of the vulnerability and its exploitation are now public. → gbhackers.com
2026-06-08 NEW 2026Critical UniFi OS bug lets hackers gain root without authentication news 3 min readWriteup detailing an unauthenticated root remote code execution chain against Ubiquiti UniFi OS Server, exploiting CVE-2026-34908, CVE-2026-34909, and CVE-2026-34910. Researchers from Bishop Fox discovered how improper access control, path traversal, and command injection flaws can be combined to bypass authentication and gain root privileges. A detection script is available to identify vulnerable instances. → bleepingcomputer.com
2026-06-08 NEW 2026Google Protocol Buffers flaw turns schemas into shells advanced 3 min readLibrary with six vulnerabilities affecting protobuf.js, a popular JavaScript implementation of Google's Protocol Buffers format. These flaws include remote code execution (CVE-2026-44291), prototype pollution, and prototype injection (CVE-2026-44292), stemming from improper handling of schema and metadata. Attackers can manipulate schemas to inject executable code, impacting software supply chains. Patches are available for protobuf.js and the associated command-line tools. → csoonline.com

Frequently Asked Questions

What is remote code execution?
Remote Code Execution (RCE) is a vulnerability that allows an attacker to run arbitrary commands or code on a target system. It is the most critical class of security vulnerability because it gives the attacker the same level of access as the application or server process, often leading to complete system compromise.
What are common RCE attack vectors?
Common vectors include command injection (unsanitized input passed to shell commands), unsafe deserialization (Java, PHP, Python, .NET), Server-Side Template Injection (Jinja2, Twig, Freemarker), file upload bypasses that execute uploaded code, expression language injection in Java frameworks, and prototype pollution in Node.js leading to code execution.
Why does RCE pay the highest bug bounties?
RCE represents total system compromise — an attacker can read all data, modify the application, pivot to internal networks, and potentially access cloud infrastructure. The impact is maximum, so bounty programs consistently pay their highest rewards for RCE findings, often ranging from $10,000 to $100,000+ depending on the target.

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