Integer Overflow or Wraparound in GitLab
Summary
| CVE | CVE-2026-110264 |
|---|---|
| State | PUBLISHED |
| Assigner | GitLab |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-22 01:16:57 UTC |
| Updated | 2026-10-22 16:18:19 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 10 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Problem Types: CWE-190 | CWE-190 CWE-190: Integer Overflow or Wraparound
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 10 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 10 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | GitLab | GitLab | affected 7.0 18.11.13 semver | Not specified |
| CNA | GitLab | GitLab | affected 19.0 19.0.10 semver | Not specified |
| CNA | GitLab | GitLab | affected 19.1 19.1.9 semver | Not specified |
| CNA | GitLab | GitLab | affected 19.2 19.2.9 semver | Not specified |
| CNA | GitLab | GitLab | affected 19.3 19.3.6 semver | Not specified |
| CNA | GitLab | GitLab | affected 19.4 19.4.3 semver | Not specified |
| CNA | GitLab | GitLab | affected 19.5 19.5.1 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| gitlab.com/gitlab-org/gitlab/-/work_items/633633 | [email protected] | gitlab.com | |
| hackerone.com/reports/4093475 | [email protected] | hackerone.com | |
| docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released | [email protected] | docs.gitlab.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Thanks [joaxcar](https://hackerone.com/joaxcar) for reporting this vulnerability through our HackerOne bug bounty program (en)
Additional Advisory Data
Solutions
CNA: Upgrade to versions 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, 19.5.1, or later.
There are currently no legacy QID mappings associated with this CVE.