Access Control Flaw in Mantis Bug Tracker for Open Source Issue Tracking
CVE-2026-34970

5.3MEDIUM

Key Information:

Vendor

Mantisbt

Status
Mantisbt
Vendor
CVE Published:
19 May 2026

What is CVE-2026-34970?

Mantis Bug Tracker (MantisBT) versions up to 2.28.1 expose a security flaw where a bugnote author can access the Revisions page of a note after losing rights to the parent private issue. This unauthorized access could lead to the disclosure of sensitive information. The issue has been resolved in version 2.28.2, ensuring robust access control that maintains the integrity of private issues.

Affected Version(s)

mantisbt < 2.28.2

References

https://github.com/mantisbt/mantisbt/security/advisories/...
x_refsource_CONFIRM
https://github.com/mantisbt/mantisbt/commit/71df1f67e05b2...
x_refsource_MISC
https://mantisbt.org/bugs/view.php?id=36978
x_refsource_MISC

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.