DEBIAN-CVE-2026-52686
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-52686
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-52686.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-52686
- Upstream
- Published
- 2026-07-23T09:16:26Z
- Modified
- 2026-09-14T17:03:17Z
- Severity
-
- 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / pdns-recursor
Package
- Name
- pdns-recursor
- Purl
- pkg:deb/debian/pdns-recursor?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
4.*
4.8.4-1
4.8.6-1
4.8.7-1
4.8.8-1
4.8.8-1+deb12u1
4.9.0-1
4.9.0-2
4.9.1-1
4.9.1-2
4.9.1-3
4.9.1-4
4.9.2-1
4.9.2-2
4.9.3-1
4.9.4-1
4.9.5-1
5.*
5.0.5-1
5.0.7-1
5.0.7-2
5.0.9-1
5.1.3-1
5.1.3-2
5.2.0-1
5.2.0-2
5.2.0-3
5.2.0-4
5.2.0-5
5.2.1-1
5.2.2-1
5.2.2-2
5.2.4-1
5.2.4-2
5.2.5-1
5.3.0-1
5.3.0-2
5.3.0-3
5.3.0-4
5.3.0-5
5.3.1-1
5.3.3-1
5.3.4-1
5.3.4-2
5.3.5-1
5.4.0-1
5.4.1-1
5.4.1-2
5.4.2-1
5.4.2-2
5.4.3-1
5.4.4-1
5.4.5-1
5.4.6-1
Debian:13 / pdns-recursor
Package
- Name
- pdns-recursor
- Purl
- pkg:deb/debian/pdns-recursor?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed5.2.12-0+deb13u1
Debian:14 / pdns-recursor
Package
- Name
- pdns-recursor
- Purl
- pkg:deb/debian/pdns-recursor?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed5.4.4-1