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Suggestion detail

Untriaged
Permalink CVE-2026-52686
3.7 LOW
  • 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): Low (L)
  • Availability (A): None (N)
  • 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): Low (L)
  • Modified Availability (MA): None (N)
created 1 month ago Activity log
  • Created suggestion 1 month ago
Wildcard CNAME proof validation bypass

The issue is a DNSSEC validation bypass where wildcard expansion proofs (NSEC/NSEC3 records) are accepted without signature validation when the wildcard answer is a CNAME or DNAME record.

Affected products

pdns-recursor
  • <5.3.9
  • <5.4.4
  • <5.2.12

Matching in nixpkgs

pkgs.rotp

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

  • nixos-unstable -
    • nixos-unstable-small 1.04
  • nixos-26.05 -
    • nixos-26.05-small 1.04

pkgs.pdns-recursor

Recursive DNS server

  • nixos-unstable -
    • nixos-unstable-small 5.4.3
  • nixos-26.05 -
    • nixos-26.05-small 5.4.3

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