CVE-2026-34933
MEDIUMAvahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon
Title source: cnaDescription
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 (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/avahi/avahi/security/advisories/GHSA-w65r-6gxh-vhvc
X_Refsource_Misc x_refsource_misc
https://github.com/avahi/avahi/pull/891
X_Refsource_Misc x_refsource_misc
https://github.com/avahi/avahi/commit/625ca0fac19229f6dfa3a6c6b698ae657187e50c
Scores
CVSS v3
5.5
EPSS
0.0020
EPSS Percentile
10.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-617
Status
published
Products (3)
avahi/avahi
0.9 rc1 (3 CPE variants)
avahi/avahi
< 0.9
avahi/avahi
< 0.9-rc4
Published
Apr 03, 2026
Tracked Since
Apr 04, 2026