GitLab CI/CD Regex Integer Overflow (CVE-2026-97229)


On October 12, 2026, GitLab released 19.4.2, 19.3.5, and 19.2.8 to fix CVE-2026-97229, an integer overflow in its CI/CD regular-expression handling. The issue was reported through HackerOne by joaxcar. GitLab assigned it a CVSS score of 10.0 and described possible code execution by an unauthenticated user.

The advisory states that CVE-2026-97229 affects GitLab CE and EE from 19.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2. GitLab says all deployment types are affected unless stated otherwise. GitLab.com was patched before disclosure, and Dedicated customers do not need to act.

Rapid7 researchers developed an end-to-end PoC that reliably runs arbitrary commands as GitLab’s git operating-system account on the official Linux amd64 gitlab/gitlab-ce:19.4.1-ce.0 image with ASLR enabled. GitLab’s release notes do not report exploitation in the wild occurring at the time of disclosure.

Read more…
Source:  Rapid7 News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Microsoft Releases Out-of-Band Security Update for Microsoft Endpoint Configuration Manager

    September 21, 2022

    Microsoft has released a security update to address a vulnerability in Microsoft Endpoint Configuration Manager, versions 2103-2207. An attacker could exploit this vulnerability to obtain sensitive information. The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review Microsoft’s Security Advisory for CVE-2022-37972 and apply the necessary updates. Read more… Source: U.S. Cybersecurity and Infrastructure Security ...

  • Atlassian Confluence Vulnerability CVE-2022-26134 Abused For Cryptocurrency Mining, Other Malware

    September 21, 2022

    Trend Micro researchers observed the active exploitation of CVE-2022-26134, an unauthenticated remote code execution (RCE) vulnerability with a critical rating of 9.8 in the collaboration tool Atlassian Confluence. The gap is being abused for malicious cryptocurrency mining. Confluence has already released a security advisory detailing the fixes necessary for all affected products, namely all versions ...

  • Zero-Day Exploit Detection Using Machine Learning

    September 16, 2022

    Code injection is an attack technique widely used by threat actors to launch arbitrary code execution on victim machines through vulnerable applications. In 2021, the Open Web Application Security Project (OWASP) ranked it as third in the top 10 web application security risks. Given the popularity of code injection in exploits, signatures with pattern matches are ...

  • WordPress-powered sites backdoored after FishPig suffers supply chain attack

    September 15, 2022

    It’s only been a week or so, and obviously there are at least three critical holes in WordPress plugins and tools that are being exploited in the wild right now to compromise loads of websites. We’ll start with FishPig, a UK-based maker of software that integrates Adobe’s Magento ecommerce suite into WordPress-powered websites. FishPig’s distribution systems ...

  • A Post-exploitation Look at Coinminers Abusing WebLogic Vulnerabilities

    September 14, 2022

    Trend Micro researchers have recently observed malicious actors exploiting both recently disclosed and older Oracle WebLogic Server vulnerabilities to deliver cryptocurrency-mining malware. Oracle WebLogic Server is typically used for developing and deploying high-traffic enterprise applications on cloud environments and engineered and conventional systems. One of the older vulnerabilities that is still being actively exploited by malicious ...

  • Cisco won’t fix authentication bypass zero-day in EoL routers

    September 7, 2022

    Cisco says that a new authentication bypass flaw affecting multiple small business VPN routers will not be patched because the devices have reached end-of-life (EoL). This zero-day bug (CVE-2022-20923) is caused by a faulty password validation algorithm that attackers could exploit to log into the VPN on vulnerable devices using what the company describes as “crafted ...