CVE-2026-110264: Integer Overflow or Wraparound in GitLab

Critical · CVSS 10.0 (CVSS 3.1)EPSS 1.0%, 63th percentilePublished 2026-10-22 00:33 UTCUpdated 2026-10-22 23:18 UTCAssigner: GitLab

Description

An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · CWE-190

Tracked companies

GitLab

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

Cloudinary Notice regarding recently-reported Ruby regular expression vulnerabilities (CVE-2026-89078, CVE-2026-93577, CVE-2026-97229, CVE-2026-110264)
2026-10-24 07:03 UTC · No impact listed · says not affected (notice says “no impact on ”)
“…regarding recently-reported Ruby regular expression vulnerabilities (CVE-2026-89078, CVE-2026-93577, CVE-2026-97229, CVE-2026-110264) On October 23, 2026, the Ruby project released security fixes for vulnerabilities in its regular expression engine…”

Affected vendors and products

GitLab: GitLab

References

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