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GitLab Reports Attempted Exploitation of CVE-2026-97229 Vulnerability

GitLab reported an attempted exploitation of a critical vulnerability (CVE-2026-97229) on October 20 and 21. Although there is no evidence of a successful attack, the instance was rebuilt as a precaution. Users are advised to reset passwords and ensure their Ruby versions are updated.

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GitLab

GitLab experienced an attempted exploitation of a critical vulnerability (CVE-2026-97229) on October 20 and 21, shortly after a fix was released. While there is no evidence that the attack succeeded, GitLab has rebuilt the affected instance as a precaution. Users will need to reset their passwords upon reopening, and those using their own Ruby installations must ensure they are updated to the latest versions to mitigate the vulnerability. GitLab's package mirrors and mailing lists remain operational during this time.

Key facts

  • An attacker attempted to exploit GitLab vulnerability CVE-2026-97229 on October 20 and 21.
  • GitLab rebuilt the instance as a precaution, finding no evidence of a successful attack.
  • The vulnerability is linked to the Ruby regular expression engine, affecting multiple versions.
  • Users must reset their passwords and update Ruby to versions 3.3.13, 3.4.12, or 4.0.9.
  • GitLab's package mirrors and mailing lists remain available during the incident.
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Original Headline

GitLab Security Incident: Attempted Exploitation of CVE-2026-97229

Neutral Headline

GitLab Reports Attempted Exploitation of CVE-2026-97229 Vulnerability