{"id":"GHSA-crmx-4p49-46m2","aliases":["CVE-2026-34970"],"title":"MantisBT: Bugnote Revision Page Leaks Private Issue Metadata After Issue Access Is Revoked","description":"MantisBT allows a bugnote author to access the note's Revisions page after losing access to the parent private issue.\n\n### Impact\nDisclosure of the private Issue's Id and Summary. The bugnote full revision body remains secure.\n\n### Patches\n- 71df1f67e05b2050cd4bd87839e6cc13747cf03f\n\n### Workarounds\nNone\n\n### Credits \nThanks to Vishal Shukla for discovering and responsibly reporting the issue.","severity":"medium","score":5.3,"published":"2026-05-11T19:33:10.000Z","modified":"2026-09-10T03:51:05.348Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"mantisbt/mantisbt","ranges":[{"events":[{"introduced":"0"},{"fixed":"2.28.2"}],"type":"ECOSYSTEM"}],"versions":["2.10.0","2.10.1","2.11.0","2.11.1","2.12.0","2.12.1","2.12.2","2.13.0","2.13.1","2.13.2","2.14.0","2.15.0","2.15.1","2.16.0","2.16.1","2.17.0","2.17.1","2.17.2","2.18.0","2.18.1","2.19.0","2.19.1","2.20.0","2.20.1","2.21.0","2.21.1","2.21.2","2.21.3","2.22.0","2.22.1","2.22.2","2.23.0","2.23.1","2.24.0","2.24.1","2.24.2","2.24.3","2.24.4","2.24.5","2.25.0","2.25.1","2.25.2","2.25.3","2.25.4","2.25.5","2.25.6","2.25.7","2.25.8","2.26.0","2.26.1","2.26.2","2.26.3","2.26.4","2.27.0","2.27.1","2.27.2","2.27.3","2.28.0","2.28.1","2.3.0","2.3.1","2.3.2","2.3.3","2.4.0","2.4.1","2.4.2","2.5.0","2.5.1","2.5.2","2.6.0","2.7.0","2.7.1","2.8.0","2.8.1","2.9.0","2.9.1"],"fixed":["2.28.2"]}],"references":["https://github.com/mantisbt/mantisbt/security/advisories/GHSA-crmx-4p49-46m2","https://nvd.nist.gov/vuln/detail/CVE-2026-34970","https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2050cd4bd87839e6cc13747cf03f","https://github.com/mantisbt/mantisbt","https://mantisbt.org/bugs/view.php?id=36978"],"sources":[{"name":"OSV","id":"GHSA-crmx-4p49-46m2","modified":"2026-09-10T03:51:05.348971230Z","url":"https://osv.dev/vulnerability/GHSA-crmx-4p49-46m2"}],"assessments":[{"source":"OSV","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.3}]}