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CVE-2026-40208

An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5cbef3aa79fc3b2182818ffe801bc1d8f6ec70b41612580888657195bd3ff94b
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-705","description":"CWE-705 Incorrect Control Flow Scoping","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"Incorrect Control Flow Scoping","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["DNS over HTTP3"],"packageName":"dnsdist","product":"DNSdist","programFiles":["doh3.cc"],"repo":"https://github.com/PowerDNS/pdns","vendor":"PowerDNS","versions":[{"lessThan":"1.9.15","status":"affected","version":"1.9.0","versionType":"semver"},{"lessThan":"2.0.7","status":"affected","version":"2.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/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:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-705","description":"CWE-705 Incorrect Control Flow Scoping","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"Incorrect Control Flow Scoping","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-09.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e25a3aaee35ae78d58104e241d3a3f4f48753c4b8e04442904b83854ad03aa · sha256:4ac67bc9c0270fca… · /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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