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Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to bypass access control restrictions and view GitLab Pages content intended only for project members by authenticating through OAuth providers.

PUBLISHED Reserved 2025-07-17 | Published 2025-11-15 | Updated 2025-11-17 | Assigner GitLab




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

Problem types

CWE-863: Incorrect Authorization

Product status

Default status
unaffected

17.9 (semver) before 18.3.6
affected

18.4 (semver) before 18.4.4
affected

18.5 (semver) before 18.5.2
affected

Credits

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

References

about.gitlab.com/...12/patch-release-gitlab-18-5-2-released/

gitlab.com/gitlab-org/gitlab/-/issues/556098 (GitLab Issue #556098) issue-tracking permissions-required

hackerone.com/reports/3250156 (HackerOne Bug Bounty Report #3250156) technical-description exploit permissions-required

cve.org (CVE-2025-7736)

nvd.nist.gov (CVE-2025-7736)

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