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Permalink CVE-2026-34933
5.5 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): High (H)
created 1 month, 3 weeks ago Activity log
  • Created suggestion 1 month, 3 weeks ago
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.

Affected products

avahi
  • ==< 0.9-rc4

Matching in nixpkgs

pkgs.avahi

mDNS/DNS-SD implementation

  • nixos-unstable 0.8
    • nixpkgs-unstable 0.8
    • nixos-unstable-small 0.8
  • nixos-25.11 0.8
    • nixos-25.11-small 0.8
    • nixpkgs-25.11-darwin 0.8

pkgs.avahi-compat

mDNS/DNS-SD implementation

  • nixos-unstable 0.8
    • nixpkgs-unstable 0.8
    • nixos-unstable-small 0.8
  • nixos-25.11 0.8
    • nixos-25.11-small 0.8
    • nixpkgs-25.11-darwin 0.8

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