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CVE-2026-42390

An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2554dd1a5412ded43ff2fd2027ce75414a1466c39aa6a3ba9c6439b318f0983f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["ZoneMD"],"packageName":"pdns-recursor","product":"Recursor","programFiles":["zonemd.cc"],"repo":"https://github.com/PowerDNS/pdns","vendor":"PowerDNS","versions":[{"lessThan":"5.4.3","status":"affected","version":"5.4.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:32db2415fd743c71d595cf37b4be8d7ba9ca4583d5ea901a6950abb0bfd9972f · sha256:08be450bc9ce0ae0… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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