CVE-2026-89078

Published: Set 24, 2026 Last Modified: Set 25, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: low

Description

AI Translation Available

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 a double free issue when parsing a specially crafted regular expression in a CI/CD configuration.

415

Double Free

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: Memory-Unsafe, C, C++
Likelihood of Exploit: High
View CWE Details
https://docs.gitlab.com/releases/patches/patch-release-gitl…
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-1-released/
https://gitlab.com/gitlab-org/gitlab/-/work_items/628577
https://gitlab.com/gitlab-org/gitlab/-/work_items/628577
https://hackerone.com/reports/4019059
https://hackerone.com/reports/4019059