CVE-2026-93577

CRITICALCVSS 9.9

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.7, 19.3 before 19.3.3, and 19.4 before 19.4.1 that under certain conditions could have allowed an authenticated user to execute arbitrary code on the GitLab server due to an integer overflow issue when compiling a specially crafted regular expression in a CI/CD configuration.

Timeline

Published:September 24th, 2026 12:17 AM

Last modified:October 31st, 2026 12:16 AM

CVSS Scoring

CVSS v3: 9.9 (CRITICAL)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Software

From NVD CPE configuration data

Vendors

gitlab

Products

gitlab

Weaknesses (CWE)

CWE-190

References & Reports

Advisories, patches, and third-party reports

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/629758Issue Tracking
https://hackerone.com/reports/3995696Permissions Required
https://www.ruby-lang.org/en/news/2026/10/23/regexp-fixes-for-gitlab-cves/

Source: NIST NVD · Data may lag official sources by up to one minute