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Medium severity6.5NVD Advisory· Published Aug 18, 2026· Updated Sep 18, 2026

CVE-2026-59949

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.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
at.yawk.lz4:lz4-javaMaven
< 1.11.11.11.1
org.lz4:lz4-javaMaven
<= 1.8.1—

Affected products

196

Patches

Vulnerability mechanics

References

4

News mentions

0

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