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CVE-2026-0398

Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5a9a0138ddfe66c2802e8275946cb14ea3fa8b25e9a5d63eda439356be8b9ac5
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":"Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["Synchronous Resolver"],"packageName":"pdns-recursor","product":"Recursor","programFiles":["syncres.cc"],"repo":"https://github.com/PowerDNS/pdns","vendor":"PowerDNS","versions":[{"lessThan":"5.3.5","status":"affected","version":"5.3.0","versionType":"semver"},{"lessThan":"5.2.8","status":"affected","version":"5.2.0","versionType":"semver"},{"lessThan":"5.1.10","status":"affected","version":"5.1.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"description":"Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:43307d00dc7160a9ab47d5290722a7e61078ccc9c44ceced63d93d0c9d100e9a · sha256:24204630f9f8811a… · /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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