
Critical GitLab Flaw (CVSS 10): Unauthenticated RCE, CVE-2026-110264
On 21 October 2026 GitLab released a critical patch release that includes CVE-2026-110264, scored CVSS 10.0, the maximum. The flaw is in GitLab CE and EE and, under certain conditions, lets an unauthenticated user run arbitrary code on the GitLab server. The Hacker News has covered it too. If you run a self-managed GitLab, update first and read the rest later. Summary ID CVE-2026-110264 Score 10.0 (Critical) Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Weakness Integer overflow in the regular expression compiler Reporter joaxcar, via GitLab’s HackerOne bug bounty The vector means: reachable over the network, low complexity, no login, no user interaction, with full impact on confidentiality, integrity and availability. ...
