Security Advisory

CVE-2026-39959

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-09 16:29:20

Last updated 2026-04-09 19:32:09

Assigner GitHub_M

State PUBLISHED

Description

Tmds.DBus provides .NET libraries for working with D-Bus from .NET. Tmds.DBus and Tmds.DBus.Protocol are vulnerable to malicious D-Bus peers. A peer on the same bus can spoof signals by impersonating the owner of a well-known name, exhaust system resources or cause file descriptor spillover by sending messages with an excessive number of Unix file descriptors, and crash the application by sending malformed message bodies that cause unhandled exceptions on the SynchronizationContext. This vulnerability is fixed in Tmds.DBus 0.92.0 and Tmds.DBus.Protocol 0.92.0 and 0.21.3.

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