{"apiVersion":"1.0","identifier":"CVE-2026-59949","description":"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.","publishedAt":"2026-08-18T15:16:56","lastModifiedAt":"2026-08-18T18:18:49","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59949","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","epssProbability":0.00453,"riskScore":0.68,"affectedProduct":"yawkat LZ4 Java","affectedVersions":"<1.11.1","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-59949","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-59949","en":"https://www.redsauce.net/en/cves/CVE-2026-59949","fr":"https://www.redsauce.net/fr/cves/CVE-2026-59949","pt":"https://www.redsauce.net/pt/cves/CVE-2026-59949","de":"https://www.redsauce.net/de/cves/CVE-2026-59949","sk":"https://www.redsauce.net/sk/cves/CVE-2026-59949","el":"https://www.redsauce.net/el/cves/CVE-2026-59949"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-59949"}}