Mantis Bug Tracker Vulnerability Allows Attachment Access from Private Issues
CVE-2026-34744

5.3MEDIUM

Key Information:

Vendor

Mantisbt

Status
Mantisbt
Vendor
CVE Published:
19 May 2026

What is CVE-2026-34744?

Mantis Bug Tracker, an open source issue tracking tool, has a vulnerability in versions 2.28.1 and earlier that allows users to list and download their own attachments from issues created by other users, even if those issues have been marked private. This flaw circumvents the intended access restrictions, leading to potential confidentiality breaches regarding user-uploaded attachments. It is essential to update to version 2.82.2 to mitigate this risk and enhance security.

Affected Version(s)

mantisbt < 2.28.2

References

https://github.com/mantisbt/mantisbt/security/advisories/...
x_refsource_CONFIRM
https://github.com/mantisbt/mantisbt/commit/de7bdeec36de0...
x_refsource_MISC
https://mantisbt.org/bugs/view.php?id=36977
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

.