CVEs / CVE-2026-97229
CVE-2026-97229: GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Vulnerability
- Known exploited in the CISA KEV catalog since 29 Oct 2026
- critical 10 CVSS 3.1 (from the CNA)
- EPSS 26.5% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
GitLab Community Edition and Enterprise Edition contain a integer overflow or wraparound vulnerability that could allow an unauthenticated user to execute arbitrary code on the GitLab server via a specially crafted regular expression in a CI/CD configuration, due to insufficient regular expression validation.
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server via a specially crafted regular expression in a CI/CD configuration, due to insufficient regular expression validation.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| GitLab GitLab | from 19.2, before 19.2.8 | 19.2.8 |
| GitLab GitLab | from 19.3, before 19.3.5 | 19.3.5 |
| GitLab GitLab | from 19.4, before 19.4.2 | 19.4.2 |
Exploitation
| In CISA KEV since | 29 Oct 2026 |
|---|---|
| Due date for US federal agencies | 1 Nov 2026 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. |
Severity
| CVSS 3.1 | 10 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-190 |
On the Stackurity blog
References
- CVE-2026-97229 on NVD
- CVE-2026-97229 in the CISA KEV catalog
- https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves (cited by CISA)
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/ (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk (cited by CISA)
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk (cited by CISA)
- CVE-2026-97229 on OSV
- https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/ Release Notes, Vendor Advisory
- https://gitlab.com/gitlab-org/gitlab/-/work_items/630686 Broken Link
- https://hackerone.com/reports/4055749 Permissions Required
- https://hackerone.com/reports/4058589 Permissions Required
- https://github.com/rapid7/metasploit-framework/pull/22017
- https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.