CVE-2025-66566
LZ4 Java <1.10.1 - Info Disclosure
Title source: llmDescription
yawkat LZ4 Java provides LZ4 compression for Java. Insufficient clearing of the output buffer in Java-based decompressor implementations in lz4-java 1.10.0 and earlier allows remote attackers to read previous buffer contents via crafted compressed input. In applications where the output buffer is reused without being cleared, this may lead to disclosure of sensitive data. JNI-based implementations are not affected. This vulnerability is fixed in 1.10.1.
Scores
EPSS
0.0007
EPSS Percentile
20.8%
Classification
CWE
CWE-201
Status
draft
Affected Products (4)
at.yawk.lz4/lz4-java
< 1.10.1Maven
org.lz4/lz4-java
Maven
org.lz4/lz4-pure-java
Maven
net.jpountz.lz4/lz4
Maven
Timeline
Published
Dec 05, 2025
Tracked Since
Feb 18, 2026