CVE-2026-42390
pdns-recursor: An invalid zone might pass ZONEMD validation while it should not
CVE-2026-42390 is fixed in pdns-recursor on 1 platform, first by DEBIAN-CVE-2026-42390, released June 26, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0030
22nd percentile
An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| pdns-recursor · Debian 13.5 (trixie) | 5.2.11-0+deb13u1 | DEBIAN-CVE-2026-42390 | Jun 26, 2026 |
| pdns-recursor · Debian 14 | 5.4.3-1 | DEBIAN-CVE-2026-42390 | Jun 26, 2026 |
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