Security Advisory

CVE-2025-46556

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-11-04 00:20:28

Last updated 2025-11-06 20:44:40

Assigner GitHub_M

State PUBLISHED

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.27.1 and below allow attackers to permanently corrupt issue activity logs by submitting extremely long notes (tested with 4,788,761 characters) due to a lack of server-side validation of note length. Once such a note is added, the activity stream UI fails to render; therefore, new notes cannot be displayed, effectively breaking all future collaboration on the issue. This issue is fixed in version 2.27.2.

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