CVE-2026-1751 | THREATINT

Description

A vulnerability has been discovered in GitLab CE/EE affecting all versions starting with 16.8 before 18.5.0 that could have allowed unauthorized edits to merge request approval rules under certain conditions.

PUBLISHED Reserved 2026-02-02 | Published 2026-02-02 | Updated 2026-02-02 | Assigner GitLab

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

Problem types

CWE-862: Missing Authorization

Product status

Default status

unaffected

16.8 (semver) before 18.5.0

affected

Credits

Thanks [theluci](https://hackerone.com/theluci) for reporting this vulnerability through our HackerOne bug bounty program finder

References

gitlab.com/gitlab-org/gitlab/-/issues/519340 (GitLab Issue #519340) issue-tracking permissions-required

hackerone.com/reports/2980839 (HackerOne Bug Bounty Report #2980839) technical-description exploit permissions-required

cve.org (CVE-2026-1751)

nvd.nist.gov (CVE-2026-1751)

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