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GitLab patches unauthenticated RCE in CE and EE (CVE-2026-110264)

Original title: Max-severity GitLab bug allows remote code execution over 12 years of releases

The Register · Securityby Jessica Lyons ()2 min read1 · 1 read
Part of a story covered by 10 sourcesGitLab patches 12-year unauthenticated RCE; Ruby fixes Onigmo bugsMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

The integer overflow reaches GitLab 7.0 from June 2014; no in-the-wild exploitation is indicated yet.

GitLab patched CVE-2026-110264, an integer overflow while compiling a specially crafted regular expression. Under certain conditions it could let an unauthenticated user execute arbitrary code on self-managed Community Edition and Enterprise Edition servers. Fixes are in 19.5.1, 19.4.3, and 19.3.6, with backports through 18.11.13. GitLab.com and GitLab Dedicated are already patched, and the vendor urges self-managed upgrades as soon as possible.

Unconfirmed: The Register says there is no indication yet of in-the-wild exploitation.

Key facts
  • Johan Carlsson reported the bug through GitLab’s HackerOne program.
  • Fixed backports are 19.2.9, 19.1.9, 19.0.10, and 18.11.13.
  • GitLab released two threat detections for self-managed customers.
  • GitLab cites 50 million registered users and over half of the Fortune 100.
  • SOC Prime warns a server compromise could expose secrets and CI/CD configuration.
Security assessment · AI, from the articleNo known exploitation

Impact: Unauthenticated arbitrary code execution on the GitLab server

ProductAffectedFixed in
GitLab Community EditionBack to GitLab 7.0, released June 201419.5.1, 19.4.3, 19.3.6, 19.2.9, 19.1.9, 19.0.10, 18.11.13
GitLab Enterprise EditionBack to GitLab 7.0, released June 201419.5.1, 19.4.3, 19.3.6, 19.2.9, 19.1.9, 19.0.10, 18.11.13
What to do
  1. 1.Upgrade self-managed GitLab CE and EE to a listed fixed version as soon as possible.
  2. 2.Deploy the two GitLab threat detections on self-managed instances.
Analyze CVE-2026-110264 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-110264
Unauthenticated RCE in GitLab CE/EE via regex integer overflow
10.0<1%PoC ×8

From the original article

2 min read at theregister.com

Vendor 'strongly recommends' upgrading to a fixed version 'as soon as possible'

The Register · Security

By Jessica Lyons · theregister.com

Read the full article at The Register · Security

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.