CVE-2026-34933

MEDIUM5.5

Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon

Published Apr 3, 2026

Modified 1 weeks ago

Details

Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been patched in version 0.9-rc4.

References

WEB

http://www.openwall.com/lists/oss-security/2026/04/11/9

WEB

https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c

WEB

https://github.com/avahi/avahi/pull/891

DETECTION

https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-34933

CVSS Analysis