CVE-2026-89078

CRITICAL
INFO Priority: 0.05 BB Relevance: 70/100
Published: 2026-09-24 Modified: 2026-10-31 First seen: 2026-10-30 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: High
I: High
A: Low

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

Weakness Classification (1)

Affected Software (7)

VendorProductVersion
GitLab GitLab 19.2 < 19.2.7
GitLab GitLab 19.3 < 19.3.3
GitLab GitLab 19.4 < 19.4.1
gitlab gitlab 19.2.0 – 19.2.7
gitlab gitlab 19.2.0 – 19.2.7
gitlab gitlab 19.4.0
gitlab gitlab 19.4.0

Bug Bounty Relevance

70 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

EPSS — Exploitation Probability

0.49%
Raw Score 0.004910
Percentile 42.2%
Date 2026-10-30

Intelligence Sources

mitre ref →
nvd ref →