What’s Vulnerable › Vulnerabilities

CVE-2026-34970: MantisBT Bugnote Revision Page Leaks Private Issue Metadata After Issue Access Is Revoked

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-20 · updated 2026-07-24
• Weakness: CWE-200

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior allow a bugnote author to access the note's Revisions page after losing access to the parent private issue. This issue has been fixed in version 2.28.2.

Affected products

• mantisbt: before 2.28.2

References

• https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2050cd4bd87839e6cc13747cf03f
• https://github.com/mantisbt/mantisbt/security/advisories/GHSA-crmx-4p49-46m2
• https://mantisbt.org/bugs/view.php?id=36978
• https://mantisbt.org/bugs/view.php?id=36978

Get alerted when CVE-2026-34970 or the next vulnerability affects your stack