CVE-2026-1080

Authorization Bypass Through User-Controlled Key in GitLab

GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to access iteration data from private descendant groups by querying the iterations API endpoint.

Affected

GitLab

CVSS v3.1 GITLAB

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

EPSS

0.27% chance of exploitation in the next 30 days, 18th percentile

Published

2026-02-11

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3484568

Security advisories

• https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released
• https://gitlab.com/gitlab-org/gitlab/-/issues/586477

References

• CVE Record
• NVD entry