{"id":"GHSA-mmwx-rj87-vfgr","aliases":[],"url":"https://o3.security/vulnerability/GHSA-mmwx-rj87-vfgr","summary":"DNSJava affected by KeyTrap - NSEC3 closest encloser proof can exhaust CPU resources","details":"### Impact\nUsers using the `ValidatingResolver` for DNSSEC validation can run into CPU exhaustion with specially crafted DNSSEC-signed zones.\n\n### Patches\nUsers should upgrade to dnsjava v3.6.0\n\n### Workarounds\nAlthough not recommended, only using a non-validating resolver, will remove the vulnerability.\n\n### References\nhttps://www.athene-center.de/en/keytrap\n","published":"2024-07-22T14:46:59Z","modified":"2026-02-04T03:23:33.036945Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"dnsjava:dnsjava","fixedVersion":"3.6.0"},{"ecosystem":"Maven","name":"org.jitsi:dnssecjava","fixedVersion":null}],"fix":{"url":"https://github.com/dnsjava/dnsjava/commit/711af79be3214f52daa5c846b95766dc0a075116","label":"dnsjava/dnsjava@711af79"},"references":[{"type":"WEB","url":"https://github.com/dnsjava/dnsjava/security/advisories/GHSA-mmwx-rj87-vfgr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50868"},{"type":"WEB","url":"https://github.com/dnsjava/dnsjava/commit/711af79be3214f52daa5c846b95766dc0a075116"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-pv4h-p8jr-6cv2"},{"type":"PACKAGE","url":"https://github.com/dnsjava/dnsjava"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-02-04T03:23:33.036945Z"}}