{"id":"CVE-2026-59949","summary":"yawkat LZ4 Java: JVM Crash via Null Byte Array in lz4-java Streaming XXHash JNI (StreamingXXHash32JNI / StreamingXXHash64JNI)","details":"yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.1, JNI-backed XXHash implementations fail to validate the byte array object and the off and len arguments in XXHashFactory.nativeInstance().hash32().hash(), XXHashFactory.nativeInstance().hash64().hash(), XXHashFactory.nativeInstance().newStreamingHash32().update(), and XXHashFactory.nativeInstance().newStreamingHash64().update(), allowing null arrays or oversized ranges to reach native code, read outside the Java array, and fatally terminate the JVM. This issue is fixed in version 1.11.1.","aliases":["GHSA-xx22-p4ch-683r"],"modified":"2026-11-11T02:48:59.779158766Z","published":"2026-08-18T14:58:08.615Z","database_specific":{"cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59949.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/yawkat/lz4-java/releases/tag/v1.11.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59949.json"},{"type":"ADVISORY","url":"https://github.com/yawkat/lz4-java/security/advisories/GHSA-xx22-p4ch-683r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59949"},{"type":"FIX","url":"https://github.com/yawkat/lz4-java/commit/dbd86d04b8dd716e1c2bc626be54189997d910da"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/yawkat/lz4-java","events":[{"introduced":"0"},{"fixed":"dbd86d04b8dd716e1c2bc626be54189997d910da"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"fixed":"1.11.1"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"},{"range":[{"introduced":"0"},{"fixed":"1.11.1"}],"source":"DESCRIPTION"},{"range":[{"fixed":"dbd86d04b8dd716e1c2bc626be54189997d910da"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"dbd86d04b8dd716e1c2bc626be54189997d910da"}],"source":"REFERENCES_TAG","original_tag":"v1.11.1"}]}}],"versions":["v1.11.0","v1.10.4","v1.10.3","v1.10.2","v1.10.1","v1.10.0","v1.9.0","1.8.0","1.7.0","1.6.0","1.5.0","1.4.0","1.3.0","1.2.0","1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-59949.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H"}]}