← Thursday, October 15, 2026SecurityVulnerability

GitLab CI/CD regex compiler flaw could allow unauthenticated code execution

bleepingcomputer.com Editor score 7/10

An integer overflow in GitLab's CI/CD Regular Expression Compiler could let unauthenticated attackers execute code through a crafted pipeline regex; fixes are available in specified releases. GitLab operators should check exposure and patch promptly.

What: GitLab disclosed critical CVE-2026-97229 in its CI/CD Regular Expression Compiler, which could allow unauthenticated remote code execution.
How: An integer overflow and insufficient regex validation in pipeline configuration could let a crafted expression execute code on a GitLab server.
Why it matters: Self-managed GitLab installations should upgrade to fixed releases because pipeline configuration can expose a server-side execution path.

A crafted pipeline configuration reaches the compiler and could trigger code execution on the GitLab server. Sketched from the article's own text.

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