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With package: pdns-recursor

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Published
Permalink CVE-2026-33260
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • 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): Low (L)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored
    7 packages
    • rotp
    • pdnsd
    • dnsdist
    • pdnsgrep
    • pdns-recursor
    • home-assistant-component-tests.namecheapdns
    • tests.home-assistant-components.namecheapdns
    3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse restored
    2 packages
    • dnsdist
    • pdns-recursor
    3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Insufficient input validation of internal webserver

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

Affected products

pdns
  • <5.0.4
  • <4.9.14
dnsdist
  • <2.0.4
  • <1.9.13
pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

pkgs.pdns

Authoritative DNS server

Ignored packages (5)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

pkgs.pdnsgrep

Search tool for PowerDNS logs

Package maintainers

https://blog.powerdns.com/2026/04/22/powerdns-security-advisory-2026-05-for-powerdns-authoritative-server
Published
Permalink CVE-2026-33257
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • 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): Low (L)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored
    5 packages
    • rotp
    • pdnsgrep
    • pdnsd
    • tests.home-assistant-components.namecheapdns
    • home-assistant-component-tests.namecheapdns
    3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Insufficient input validation of internal webserver

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

Affected products

pdns
  • <5.0.4
  • <4.9.14
dnsdist
  • <2.0.4
  • <1.9.13
pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

pkgs.pdns

Authoritative DNS server

Ignored packages (5)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

pkgs.pdnsgrep

Search tool for PowerDNS logs

Package maintainers

https://blog.powerdns.com/2026/04/22/powerdns-security-advisory-2026-05-for-powerdns-authoritative-server
Published
Permalink CVE-2026-33261
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)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Null pointer accces in aggressive NSEC(3) cache

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2026-33258
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • 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): Low (L)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Crafted zones can cause increased resource usage

By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC(3) caches.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2026-33601
4.4 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): High (H)
  • 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): High (H)
  • 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)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Insufficient validation of zonemd record

If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2026-33600
4.4 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): High (H)
  • 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): High (H)
  • 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)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Null pointer dereference in RPZ transfer

An RPZ sent by a malicious authoritative server can result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2026-33259
5.0 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): High (H)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): High (H)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): High (H)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Concurrent modification of RPZ data can lead to denial of servce

Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2026-33262
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)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Insufficient validation of cookie reply

An attacker can send replies that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service. Cookies are disabled by default.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2026-33256
5.3 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): None (N)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • 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): Low (L)
updated 3 weeks, 2 days ago by @LeSuisse Activity log
  • Created suggestion 3 weeks, 2 days ago
  • @LeSuisse ignored package rotp 3 weeks, 2 days ago
  • @LeSuisse accepted 3 weeks, 2 days ago
  • @LeSuisse published on GitHub 3 weeks, 2 days ago
Unbounded memory allocation by internal web server

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

Affected products

pdns-recursor
  • <5.4.1
  • <5.2.9
  • <5.3.6

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Published
Permalink CVE-2025-59023
8.2 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): High (H)
  • Availability (A): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • 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): High (H)
  • Modified Availability (MA): Low (L)
updated 3 months ago by @LeSuisse Activity log
  • Created suggestion 3 months ago
  • @LeSuisse ignored package rotp 3 months ago
  • @LeSuisse deleted maintainer @rnhmjoj 3 months ago maintainer.delete
  • @LeSuisse accepted 3 months ago
  • @LeSuisse published on GitHub 3 months ago
Crafted delegations or IP fragments can poison cached delegations in Recursor

Crafted delegations or IP fragments can poison cached delegations in Recursor.

Affected products

pdns-recursor
  • <5.1.8
  • <5.2.6
  • <5.3.1

Matching in nixpkgs

Ignored packages (1)

pkgs.rotp

Open-source modernization of the 1993 classic "Master of Orion", written in Java

  • nixos-unstable 1.04
    • nixpkgs-unstable 1.04
    • nixos-unstable-small 1.04
  • nixos-25.11 1.04
    • nixos-25.11-small 1.04
    • nixpkgs-25.11-darwin 1.04

Package maintainers

Ignored maintainers (1) 
Upstream advisory: https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-06.html