Bug 2506901 - CVE-2026-52686 pdns-recursor: pdns-recursor: DNSSEC validation bypass due to unsigned wildcard expansion proofs [fedora-all]
Summary: CVE-2026-52686 pdns-recursor: pdns-recursor: DNSSEC validation bypass due to ...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: pdns-recursor
Version: 45
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Filipe Rosset
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["48bfd6d8-d5fe-4a21-8148-a...
Depends On:
Blocks: CVE-2026-52686
TreeView+ depends on / blocked
 
Reported: 2026-07-24 18:46 UTC by Thibault Guittet
Modified: 2026-08-17 15:36 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Thibault Guittet 2026-07-24 18:46:42 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.

Comment 1 Aoife Moloney 2026-08-17 15:36:51 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.


Note You need to log in before you can comment on or make changes to this bug.