CVE-2026-110264: GitLab · Integer Overflow or Wraparound
Affects GitLabSource CVE Database V5
Not known to be exploited · CVSS 10.0 Critical · fixed in 19.5.1 : patch GitLab as a priority.
Data as of 26 Oct 2026, 17:30 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 62% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- No evidence of active exploitation and no public proof of concept
- Automatable
- Attackers can reliably automate steps 1–4 of the kill chain
- Technical impact
- Total control over the software or total information disclosure
CISA SSVC assessment, 2026-10-21.
- Patch
- Available – fixed in 19.5.1, 19.4.3, 19.3.6 +4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 22 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GitLabGitLab | Affected
| Fixed in
|
| GitLabGitLab | Affected
| Fixed in
|
| GitLabGitLab | Affected
| Fixed in
|
| GitLabGitLab | Affected
| Fixed in
|
| GitLabGitLab | Affected
| Fixed in
|
| GitLabGitLab | Affected
| Fixed in
|
CPE configurations (1)
cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
AI-suggested
Upgrade GitLab CE/EE to one of the fixed versions: 18.11.13, 19.0.10, 19.1.9, 19.2.9, 19.3.6, 19.4.3, or 19.5.1. Applying these official fixes fully mitigates the vulnerability. No other mitigation is indicated.
Description
CVE-2026-110264 is a critical integer overflow vulnerability in GitLab CE/EE affecting multiple version ranges from 7.0 up to fixed releases in late 2023 and 2024. An unauthenticated attacker could exploit this flaw by crafting a malicious regular expression that triggers an integer overflow during compilation, potentially allowing arbitrary code execution on the GitLab server.