CVE catalog
CVE-2026-110264
ruby3.1: CVE-2026-110264
- Severity
- Critical · CVSS 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.00% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruby3.1 | bookworm | 3.1.2-7+deb12u1 | vulnerable |
| Debian | ruby3.1 | bookworm-security | 3.1.2-7+deb12u1 | vulnerable |
| Alpine | ruby | 3.24 | 3.4.12-r0 | fixed |
| Alpine | ruby | 3.23 | 3.4.12-r0 | fixed |
| Alpine | ruby | 3.21 | 3.3.13-r0 | fixed |
| Alpine | ruby | 3.22 | 3.4.12-r0 | fixed |
| Cpe | gitlab | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby3.1 | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Alpine | ruby | apk | 3.24 | 3.4.12-r0 | Not reported | ALPINE-CVE-2026-110264 | Not reported |
| Alpine | ruby | apk | 3.23 | 3.4.12-r0 | Not reported | ALPINE-CVE-2026-110264 | Not reported |
| Alpine | ruby | apk | 3.21 | 3.3.13-r0 | Not reported | ALPINE-CVE-2026-110264 | Not reported |
| Alpine | ruby | apk | 3.22 | 3.4.12-r0 | Not reported | ALPINE-CVE-2026-110264 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libruby3.1]Affected
Source package: [ruby3.1]
Details (4)
3.1.2-7+deb12u1· amd64 · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· arm64 · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· amd64 · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· arm64 · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
- [ruby3.1]Affected
Details (4)
3.1.2-7+deb12u1· amd64 · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· arm64 · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· amd64 · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· arm64 · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
- [ruby3.1-dev]Affected
Source package: [ruby3.1]
Details (4)
3.1.2-7+deb12u1· amd64 · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· arm64 · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· amd64 · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· arm64 · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
- [ruby3.1-doc]Affected
Source package: [ruby3.1]
Details (4)
3.1.2-7+deb12u1· all · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· all · bookwormAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· all · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
3.1.2-7+deb12u1· all · bookworm-securityAffected
dsa · ruby3.1 · debian · bookworm; dsa · ruby3.1 · debian · 12
[Debian 13 (Trixie)]
- [libruby3.3]Affected
Source package: [ruby3.3]
Details (2)
3.3.8-2· amd64 · trixieAffected
dsa · ruby3.3 · debian · 13
3.3.8-2· arm64 · trixieAffected
dsa · ruby3.3 · debian · 13
- [ruby3.3]Affected
Details (2)
3.3.8-2· amd64 · trixieAffected
dsa · ruby3.3 · debian · 13
3.3.8-2· arm64 · trixieAffected
dsa · ruby3.3 · debian · 13
- [ruby3.3-dev]Affected
Source package: [ruby3.3]
Details (2)
3.3.8-2· amd64 · trixieAffected
dsa · ruby3.3 · debian · 13
3.3.8-2· arm64 · trixieAffected
dsa · ruby3.3 · debian · 13
- [ruby3.3-doc]Affected
Source package: [ruby3.3]
Details (2)
3.3.8-2· all · trixieAffected
dsa · ruby3.3 · debian · 13
3.3.8-2· all · trixieAffected
dsa · ruby3.3 · debian · 13
Observed:
References
- [https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/]
- [https://gitlab.com/gitlab-org/gitlab/-/work_items/633633]
- [https://hackerone.com/reports/4093475]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-110264]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-110264]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-110264]
- [https://security-tracker.debian.org/tracker/CVE-2026-110264]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]