CVE-2026-97229: GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Vulnerability

CISA Known Exploited Vulnerabilities

Name

GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound Vulnerability

Vendor

GitLab

Product

Community Edition and Enterprise Edition

Added to the catalog

2026-10-29

Due date for US federal agencies

2026-11-01

Weaknesses

CWE-190

Catalog version

2026.10.30

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.

Required action (CISA)

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.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves
• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
• https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
• https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
• https://nvd.nist.gov/vuln/detail/CVE-2026-97229

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2026-10-13T02:17:00.840

Last modified

2026-11-02T13:30:16.800

Weaknesses

CWE-190

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.

References

• 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 (Issue Tracking, Third Party Advisory)
• https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/ (Third Party Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-97229 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:31.494Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-97229

CVE record

Title (CNA)

Integer Overflow or Wraparound in GitLab

Assigner

GitLab

State

PUBLISHED

Published

2026-10-13T01:05:46.166Z

Updated

2026-10-30T23:18:16.598Z

Problem types

CWE-190: Integer Overflow or Wraparound

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.

References

• https://gitlab.com/gitlab-org/gitlab/-/work_items/630686
• HackerOne Bug Bounty Report #4055749
• HackerOne Bug Bounty Report #4058589
• https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/

Read on 2026-11-03T02:21:49.346Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/97xxx/CVE-2026-97229.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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