CVE-2026-89078
Published:September 23, 2026
Updated:October 13, 2026
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.
Affected Packages
https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.4.0-rc42 <v19.4.1Fix Suggestion:
Update to version v19.4.1https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.2.0-rc42 <v19.2.7Fix Suggestion:
Update to version v19.2.7https://github.com/gitlabhq/gitlabhq.git (GITHUB):
Affected version(s) >=v19.3.0-rc42 <v19.3.3Fix Suggestion:
Update to version v19.3.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
LOW
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
LOW
CVSS v3
Base Score:
9.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW
Weakness Type (CWE)
Double Free
EPSS
Base Score:
0.44