{"cve":"CVE-2026-93657","nvd":{"published":"2026-09-18T15:17:22.190","modified":"2026-09-22T20:53:07.383","status":"Deferred","description":"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 answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-347"],"references":["https://github.com/hickory-dns/hickory-dns","https://github.com/hickory-dns/hickory-dns/commit/30720f4fb22e5556ecbf26d2c8274ea4a9fdd238","https://github.com/hickory-dns/hickory-dns/pull/3871","https://github.com/hickory-dns/hickory-dns/releases/tag/v0.26.2","https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-5j98-2g5x-46v6"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-93657","score":0.00231,"percentile":0.13976,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-5j98-2g5x-46v6","url":"https://osv.dev/vulnerability/GHSA-5j98-2g5x-46v6","summary":"hickory-resolver: Resolver::lookup() and Resolver::lookup_ip() APIs obscure DNSSEC validation failures","modified":"2026-10-05T23:00:04.250222435Z","packages":[{"ecosystem":"crates.io","name":"hickory-resolver","purl":"pkg:cargo/hickory-resolver","ranges":["<0.26.2"],"fixed":["0.26.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}