{"id":"CVE-2026-93657","title":"hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results","summary":"hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the a…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-347","CWE-354"],"vendor":"hickory-dns","product":"hickory-resolver","affected":["hickory-resolver < 0.26.2"],"published":"2026-09-18","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:53:07.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93657","references":[{"url":"https://github.com/hickory-dns/hickory-dns","label":"disclosure@vulncheck.com"},{"url":"https://github.com/hickory-dns/hickory-dns/commit/30720f4fb22e5556ecbf26d2c8274ea4a9fdd238","label":"disclosure@vulncheck.com"},{"url":"https://github.com/hickory-dns/hickory-dns/pull/3871","label":"disclosure@vulncheck.com"},{"url":"https://github.com/hickory-dns/hickory-dns/releases/tag/v0.26.2","label":"disclosure@vulncheck.com"},{"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-5j98-2g5x-46v6","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/hickory-resolver-before-0.26.2-dnssec-validation-bypass","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93657.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-93657"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2538208"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93657"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93657"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.0023,"epssPercentile":0.14144,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-21T16:28:49.154433Z"},"ingestedAt":"2026-09-18T14:43:13.070Z","slug":"CVE-2026-93657","body":"## Overview\n\nhickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Logging Subsystem for Red Hat OpenShift, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat Hardened Images, Red Hat OpenShift AI (RHOAI), Red Hat OpenShift Update Service, … · no fix planned: Red Hat Trusted Profile Analyzer, Logging Subsystem for Red Hat OpenShift, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, … · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93657.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}