CVE catalog
CVE-2026-52690
Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.43% · Oct 25, 2026
Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pdns-recursor | sid | 5.4.9-1 | fixed |
| Debian | pdns-recursor | forky | 5.4.8-1 | fixed |
| Debian | pdns-recursor | trixie | 5.2.13-0+deb13u1 | fixed |
| Debian | pdns-recursor | trixie-security | 5.2.13-0+deb13u1 | fixed |
| Debian | pdns-recursor | bookworm | 4.8.8-1+deb12u1 | vulnerable |
| Debian | pdns-recursor | bookworm-security | 4.8.8-1+deb12u1 | vulnerable |
| Cpe | pdns-recursor | Not reported | Not reported | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pdns-recursor | source | sid | 5.4.3-1 | not yet assigned | Not reported | Not reported |
| Debian | pdns-recursor | source | forky | 5.4.3-1 | not yet assigned | Not reported | Not reported |
| Debian | pdns-recursor | source | trixie | 5.2.11-0+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | pdns-recursor | source | bookworm | (unfixed) | end-of-life | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [pdns-recursor]Affected
Details (4)
4.8.8-1+deb12u1· amd64 · bookwormAffected
nvd · pdns-recursor · debian · bookworm; nvd · pdns-recursor · debian · 12
4.8.8-1+deb12u1· arm64 · bookwormAffected
nvd · pdns-recursor · debian · bookworm; nvd · pdns-recursor · debian · 12
4.8.8-1+deb12u1· amd64 · bookworm-securityAffected
nvd · pdns-recursor · debian · bookworm; nvd · pdns-recursor · debian · 12
4.8.8-1+deb12u1· arm64 · bookworm-securityAffected
nvd · pdns-recursor · debian · bookworm; nvd · pdns-recursor · debian · 12
[Debian 13 (Trixie)]
- [pdns-recursor]Fixed
Details (4)
5.2.11-0+deb13u1· amd64 · trixieFixed · Fixed:
5.2.11-0+deb13u1nvd · pdns-recursor · debian · 13
5.2.11-0+deb13u1· arm64 · trixieFixed · Fixed:
5.2.11-0+deb13u1nvd · pdns-recursor · debian · 13
5.2.13-0+deb13u1· amd64 · trixie-securityFixed · Fixed:
5.2.11-0+deb13u1nvd · pdns-recursor · debian · 13
5.2.13-0+deb13u1· arm64 · trixie-securityFixed · Fixed:
5.2.11-0+deb13u1nvd · pdns-recursor · debian · 13
Observed:
References
- [https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-52690]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-52690]
- [https://security-tracker.debian.org/tracker/CVE-2026-52690]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52690.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2091.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]