{"id":"CVE-2026-24029","state":"PUBLISHED","title":"DNS over HTTPS ACL bypass","description":"When the early_acl_drop (earlyACLDrop in Lua) option is disabled (default is enabled) on a DNS over HTTPs frontend using the nghttp2 provider, the ACL check is skipped, allowing all clients to send DoH queries regardless of the configured ACL.","publishedAt":"2026-03-31T11:59:12.903Z","updatedAt":"2026-03-31T13:15:37.448Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"OX"},"assigner":"OX","products":["PowerDNS DNSdist"],"affected":[{"vendor":"PowerDNS","product":"DNSdist","packageName":"dnsdist","defaultStatus":"unaffected","versions":[{"version":"1.9.0","status":"affected","lessThan":"1.9.12","versionType":"semver"},{"version":"2.0.0","status":"affected","lessThan":"2.0.3","versionType":"semver"}],"collectionURL":"https://repo.powerdns.com/","modules":["Incoming DNS over HTTPS"],"programFiles":["dnsdist-nghttp2-in.cc"],"repo":"https://github.com/PowerDNS/pdns"}],"references":["https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/24xxx/CVE-2026-24029.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-24029","state":"PUBLISHED","datePublished":"2026-03-31T11:59:12.903Z","dateUpdated":"2026-03-31T13:15:37.448Z","assignerShortName":"OX","assignerOrgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","dateReserved":"2026-01-20T14:56:25.872Z"},"containers":{"cna":{"title":"DNS over HTTPS ACL bypass","descriptions":[{"lang":"en","value":"When the early_acl_drop (earlyACLDrop in Lua) option is disabled (default is enabled) on a DNS over HTTPs frontend using the nghttp2 provider, the ACL check is skipped, allowing all clients to send DoH queries regardless of the configured ACL."}],"affected":[{"vendor":"PowerDNS","product":"DNSdist","packageName":"dnsdist","defaultStatus":"unaffected","versions":[{"version":"1.9.0","status":"affected","lessThan":"1.9.12","versionType":"semver"},{"version":"2.0.0","status":"affected","lessThan":"2.0.3","versionType":"semver"}],"collectionURL":"https://repo.powerdns.com/","modules":["Incoming DNS over HTTPS"],"programFiles":["dnsdist-nghttp2-in.cc"],"repo":"https://github.com/PowerDNS/pdns"}],"references":[{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"description":"Incorrect Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"OX","orgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","dateUpdated":"2026-03-31T11:59:12.903Z"},"credits":[{"lang":"en","type":"finder","value":"Surya Narayan Kushwaha (aka Cavid)"}],"datePublic":"2026-03-30T22:00:00.000Z","source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-31T13:15:34.638851Z","id":"CVE-2026-24029","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","type":"CWE","lang":"en","description":"CWE-863 Incorrect Authorization"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-31T13:15:37.448Z"}}]}}}