{"id":"CVE-2026-116013","published":"2026-10-24T12:16:57.437","lastModified":"2026-10-26T18:39:42.503","description":"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.","cvssScore":3.7,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","cwes":["CWE-130"],"vendors":[],"products":[],"references":[{"url":"https://github.com/openresty/lua-resty-dns/blob/v0.23/lib/resty/dns/resolver.lua#L396-L442","tags":[]},{"url":"https://github.com/openresty/lua-resty-dns/commit/b68eaecbf7997ac71c08ba56032b1f45438bd758","tags":[]},{"url":"https://github.com/openresty/lua-resty-dns/pull/83","tags":[]},{"url":"https://github.com/openresty/lua-resty-dns/tree/v0.24","tags":[]},{"url":"https://www.vulncheck.com/advisories/openresty-lua-resty-dns-before-0.24-denial-of-service-via-dns-response-parsing","tags":[]}],"exploitRefs":[{"url":"https://github.com/openresty/lua-resty-dns/blob/v0.23/lib/resty/dns/resolver.lua#L396-L442","tags":[]},{"url":"https://github.com/openresty/lua-resty-dns/commit/b68eaecbf7997ac71c08ba56032b1f45438bd758","tags":[]},{"url":"https://github.com/openresty/lua-resty-dns/pull/83","tags":[]},{"url":"https://github.com/openresty/lua-resty-dns/tree/v0.24","tags":[]}],"hasPoc":true,"ai":null}