{"id":"GHSA-crjg-w57m-rqqf","aliases":[],"url":"https://o3.security/vulnerability/GHSA-crjg-w57m-rqqf","summary":"DNSJava vulnerable to KeyTrap - Denial-of-Service Algorithmic Complexity Attacks","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":"2024-07-22T17:30:19Z","modified":"2026-02-04T04:19:56.981845Z","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/07ac36a11578cc1bce0cd8ddf2fe568f062aee78","label":"dnsjava/dnsjava@07ac36a"},"references":[{"type":"WEB","url":"https://github.com/dnsjava/dnsjava/security/advisories/GHSA-crjg-w57m-rqqf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50387"},{"type":"WEB","url":"https://github.com/dnsjava/dnsjava/commit/07ac36a11578cc1bce0cd8ddf2fe568f062aee78"},{"type":"WEB","url":"https://github.com/dnsjava/dnsjava/commit/3ddc45ce8cdb5c2274e10b7401416f497694e1cf"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-8459-gg55-8qjj"},{"type":"PACKAGE","url":"https://github.com/dnsjava/dnsjava"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-02-04T04:19:56.981845Z"}}