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:

  • Cisco Accidentally Released Dirty Cow Exploit Code in Software

    November 8, 2018

    Cisco revealed that it had “inadvertently” shipped an in-house exploit code that was used in test scripts as part of  its TelePresence Video Communication Server and Expressway Series software. Cisco Systems revealed in a security bulletin Wednesday that it “inadvertently” shipped in-house exploit code that was used in security tests of scripts as part of its ...

  • IoT security: Why it will get worse before it gets better

    November 7, 2018

    There are billions of connected devices in use around the world, in our homes, our offices, even inside our bodies as medical devices are connected to an ever-growing internet of things (IoT). Vendors rush to add to the range of devices available, with many looking to gain a hold in the market as quickly as possible, delivering ...

  • Rapidly Growing Router Botnet Takes Advantage of 5-Year-Old Flaw

    November 7, 2018

    A sophisticated proxy code has infected hundreds of thousands of devices already. A fresh botnet is spreading across the landscape, targeting router equipment. So far, hundreds of thousands of bot endpoints have already been identified, and they’re apparently being marshaled to send out massive amounts of spam. The botnet first emerged in September, according to 360Netlab telemetry, ...

  • VirtualBox zero-day published by disgruntled researcher

    November 7, 2018

    A Russian security researcher has published details about a zero-day vulnerability affecting VirtualBox, an Oracle software application for running virtual machines. According to a text file uploaded on GitHub, Saint Petersburg-based researcher Sergey Zelenyuk has found a chain of bugs that can allow malicious code to escape the VirtualBox virtual machine (the guest OS) and execute ...

  • Apache Struts Warns Users of Two-Year-Old Vulnerability

    November 6, 2018

    Users must update their vulnerable libraries manually. The Apache Software Foundation warned in an advisory that the latest version of the Commons FileUpload library is susceptible to a two-year-old remote code execution flaw. Users of the vulnerable library must update their projects manually. The critical bug in Commons FileUpload library is a known vulnerability (CVE-2016-1000031) that enables ...

  • New Intel CPU Flaw Exploits Hyper-Threading to Steal Encrypted Data

    November 3, 2018

    A team of security researchers has discovered another serious side-channel vulnerability in Intel CPUs that could allow an attacker to sniff out sensitive protected data, like passwords and cryptographic keys, from other processes running in the same CPU core with simultaneous multi-threading feature enabled. The vulnerability, codenamed PortSmash (CVE-2018-5407), has joined the list of other dangerous side-channel vulnerabilities ...