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CVE-2026-42389

This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cc8815a79bbe9d59576d1cc6fc2403440f80d10eedc5742ebd6016a05c587a88
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

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /containers/cna/problemTypes/0/descriptions/0

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["Web Server"],"packageName":"pdns-recursor","product":"Recursor","programFiles":["pdns_recursor.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:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /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:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /containers/adp/0/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:b9503d2245fe7c7b37e3e7810dbedfe4604ab8945e6d581bfeed50260d901b20 · sha256:909b03ec20930ee1… · /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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