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CVE-2026-34933
5.5 MEDIUM
- CVSS version: 3.1
- Attack vector (AV): LOCAL
- Attack complexity (AC): LOW
- Privileges required (PR): LOW
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): NONE
- Availability impact (A): HIGH
Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon
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
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https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc x_refsource_CONFIRM
-
https://github.com/avahi/avahi/pull/891 x_refsource_MISC
Affected products
avahi
- ==< 0.9-rc4
Matching in nixpkgs
pkgs.avahi
mDNS/DNS-SD implementation
pkgs.guile-avahi
Bindings to Avahi for GNU Guile
pkgs.avahi-compat
mDNS/DNS-SD implementation
pkgs.haskellPackages.avahi
Minimal DBus bindings for Avahi daemon (http://avahi.org)
pkgs.python312Packages.avahi
mDNS/DNS-SD implementation
pkgs.python313Packages.avahi
mDNS/DNS-SD implementation
pkgs.python314Packages.avahi
mDNS/DNS-SD implementation
Package maintainers
-
@lovek323 Jason O'Conal <jason@oconal.id.au>
-
@globin Robin Gloster <mail@glob.in>
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@foo-dogsquared Gabriel Arazas <foodogsquared@foodogsquared.one>