CVE-2026-15831

MEDIUM 4.3

Generation of Incorrect Security Tokens in GitLab

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.3 and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to bypass administrator-configured tool governance policies due to improper authorization enforcement during token generation.

CWE	CWE-1270
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Jul 29, 2026
Last Updated	Jul 29, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

GitLab / GitLab

19.1 < 19.1.3 19.2 < 19.2.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/605484 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/

Credits

This vulnerability has been discovered internally by GitLab team member Dennis Appelt