critical10.0
CVE-2026-110264
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…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Gitlab | Gitlab | from 7.0.0 before 18.11.13 from 19.0.0 before 19.0.10 from 19.1.0 before 19.1.9 from 19.2.0 before 19.2.9 from 19.3.0 before 19.3.6 from 19.4.0 before 19.4.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-83vq-rvff-66gw
- https://nvd.nist.gov/vuln/detail/CVE-2026-110264
- https://hackerone.com/reports/4093475
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released
- https://gitlab.com/gitlab-org/gitlab/-/work_items/633633
- https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/
- https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/