{"schema":"threatline.record/2","record":{"id":"CVE-2026-116013","aliases":[],"summary":"OpenResty lua-resty-dns before 0.24 Denial of Service via DNS Response Parsing","details":"OpenResty lua-resty-dns before 0.24 contains an improper input validation vulnerability in parse_section() and _decode_name() that fails to check resource record lengths against the received message. Attackers controlling or spoofing a queried nameserver can send truncated record headers or RDATA, raising uncaught Lua exceptions in resolver:query() that abort requests and break name resolution.","categories":["Runtimes & languages"],"product":"lua-resty-dns","vendor":"openresty","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116013","source_modified_at":"2026-10-24T11:40:31.527Z","fetched_at":"2026-10-24T14:26:37.433577Z","product":"lua-resty-dns","vendor":"openresty","versions":[{"version":"0","lessThan":"0.24","versionType":"custom","status":"affected"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116013","source_modified_at":"2026-10-24T11:40:31.527Z","fetched_at":"2026-10-24T14:26:37.433577Z","package":{"name":"lua-resty-dns","ecosystem":null},"version":"0.24","basis":"first unaffected version stated in the CVE record"}],"cvss":6.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-24T11:40:31.527Z","modified_at":"2026-10-24T11:40:31.527Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116013","fetched_at":"2026-10-24T14:26:37.433577Z","source_modified_at":"2026-10-24T11:40:31.527Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/openresty/lua-resty-dns/pull/83","tags":["patch","issue-tracking"]},{"source":"CVE List","url":"https://github.com/openresty/lua-resty-dns/commit/b68eaecbf7997ac71c08ba56032b1f45438bd758","tags":["patch"]},{"source":"CVE List","url":"https://github.com/openresty/lua-resty-dns/blob/v0.23/lib/resty/dns/resolver.lua#L396-L442","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/openresty/lua-resty-dns/tree/v0.24","tags":["release-notes"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/openresty-lua-resty-dns-before-0.24-denial-of-service-via-dns-response-parsing","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-24T11:40:31.527Z","content_hash":"8a99c70f864f19e4cc6308cb6c30ab9b47d5738e4cd1727e7464b1e8fbd08a21"}}