Nixpkgs security tracker

Untriaged

Permalink CVE-2026-33610

5.9 MEDIUM

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): High (H)
Privileges Required (PR): None (N)
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): Network (N)
Modified Attack Complexity (MAC): High (H)
Modified Privileges Required (MPR): None (N)
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, 1 week ago Activity log

Created suggestion 1 month, 1 week ago

Possible file descriptor exhaustion in forward-dnsupdate

A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.

References

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-p…

Affected products

pdns

<4.9.14
<5.0.4

Matching in nixpkgs

pkgs.pdns

Authoritative DNS server

nixos-unstable 5.0.3
- nixpkgs-unstable 5.0.3
- nixos-unstable-small 5.0.3
nixos-25.11 4.9.8
- nixos-25.11-small 4.9.8
- nixpkgs-25.11-darwin 4.9.8

pkgs.pdnsd

Permanent DNS caching

nixos-unstable 1.2.9a-par
- nixpkgs-unstable 1.2.9a-par
- nixos-unstable-small 1.2.9a-par
nixos-25.11 1.2.9a-par
- nixos-25.11-small 1.2.9a-par
- nixpkgs-25.11-darwin 1.2.9a-par