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Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 13.7 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an authenticated user to view Jira issues outside the configured project scope due to an integration filter functioning only as a display control rather than enforcing access boundaries as specified.

PUBLISHED Reserved 2026-02-24 | Published 2026-05-14 | Updated 2026-05-14 | Assigner GitLab




MEDIUM: 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Problem types

CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')

Product status

Default status
unaffected

13.7 (semver) before 18.9.7
affected

18.10 (semver) before 18.10.6
affected

18.11 (semver) before 18.11.3
affected

Credits

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

References

hackerone.com/reports/3566042 (HackerOne Bug Bounty Report #3566042) technical-description exploit permissions-required

gitlab.com/gitlab-org/gitlab/-/work_items/591354

about.gitlab.com/...3/patch-release-gitlab-18-11-3-released/

cve.org (CVE-2026-3160)

nvd.nist.gov (CVE-2026-3160)

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