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GHSA-xrw6-gwf8-vvr9

Tmds.DBus: malicious D-Bus peers can spoof signals, exhaust file descriptor resources, and cause denial of service

Source: GitHub Advisory Database (reviewed) High CVE-2026-39959

Packages

EcosystemPackageAffectedFixed in
NuGet Tmds.DBus < 0.92.0 0.92.0
NuGet Tmds.DBus.Protocol < 0.21.3 0.21.3
NuGet Tmds.DBus.Protocol >= 0.22.0, < 0.92.0 0.92.0

Details

As written in the advisory (Markdown source, shown as plain text).

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. ### Patches The vulnerabilities are fixed in version 0.92.0. For Tmds.DBus.Protocol, the fixes are also backported to 0.21.3. ### Workarounds There are no known workarounds. Users should upgrade to a patched version.

References

External links from the advisory. They lead to third-party sites.