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Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.1 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an unauthenticated user to determine the existence of a private project due to improper authorization controls on cross-project reference pages.

PUBLISHED Reserved 2026-04-30 | Published 2026-07-08 | Updated 2026-07-09 | Assigner GitLab




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

Problem types

CWE-862: Missing Authorization

Product status

Default status
unaffected

9.1 (semver) before 18.11.7
affected

19.0 (semver) before 19.0.4
affected

19.1 (semver) before 19.1.2
affected

Credits

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

References

hackerone.com/reports/3704739 (HackerOne Bug Bounty Report #3704739) technical-description exploit permissions-required

gitlab.com/gitlab-org/gitlab/-/work_items/597947

docs.gitlab.com/...hes/patch-release-gitlab-19-1-2-released/

cve.org (CVE-2026-7492)

nvd.nist.gov (CVE-2026-7492)

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