CVE-2026-12436

HIGH CVSS 3.1: 8.4 EPSS 0.31%
Updated Aug 03, 2026
GitLab
Parameter Value
CVSS 8.4 (HIGH)
Affected Versions 18.0.0 — 19.1.3
Fixed In 19.0.5
Type CWE-915
Vendor GitLab
Public PoC No

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.0 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to modify CI/CD configuration belonging to another user due to improper validation of user-supplied attributes when processing pipeline schedule inputs.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 6

Configuration From (including) Up to (excluding)
Gitlab Gitlab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
18.0.0 19.0.5
Gitlab Gitlab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
18.0.0 19.0.5
Gitlab Gitlab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
19.1.0 19.1.3
Gitlab Gitlab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
19.1.0 19.1.3
Gitlab Gitlab
cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:community:*:*:*
Gitlab Gitlab
cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:enterprise:*:*:*