CVE-2026-34579

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and prior are vulnerable to Authorization Bypass through the private issue monitoring feature . Using a crafted POST request to bug_monitor_add.php, a user with project-level access can add themselves as a monitor for a private issue they do not have access to. Despite displaying an Access Denied error, the application accepts the request and creates a monitor relationship for the private issue. Direct access to the private issue remains blocked, but the user will receive email notifications for updates, leading to disclosure of the private issue's metadata and content. This issue has been fixed in version 2.28.2.

CVSS

No CVSS.

References

Link	Resource
https://github.com/mantisbt/mantisbt/commit/0a93267deba445fb9d15250c16e6fdb1246ffa65
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-ggw7-9675-6v4v
https://mantisbt.org/bugs/view.php?id=36975

Configurations

No configuration.

History

19 May 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-19 23:16

Updated : 2026-05-20 14:06

NVD link : CVE-2026-34579

Mitre link : CVE-2026-34579

CVE.ORG link : CVE-2026-34579

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-863

Incorrect Authorization

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