CVE-2026-110264
Critical
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.
SeverityCritical
CVSS10.0
Exploit probability—
Product
Gitlab
PublishedOct 22, 2026
First seenOct 22, 2026
Weakness typeCWE-190Integer overflow
How to fix
Update
- gitlab gitlab18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gitlab gitlab | 7.0.0 ≤ v < 18.11.13, 19.0.0 ≤ v < 19.0.10, 19.1.0 ≤ v < 19.1.9, 19.2.0 ≤ v < 19.2.9, 19.3.0 ≤ v < 19.3.6, 19.4.0 ≤ v < 19.4.3, 19.5.0 | 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3 |
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