8.2
/ 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
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.
Basic Information
ID
CVE-2025-66566
Source
GitHub_M
Published
Dec 5, 2025 at 18:10
Modified
Dec 5, 2025 at 18:27
Affected Product
Vendor
yawkat
Product
lz4-java
Version
< 1.10.1
Affected Versions
yawkat lz4-java < 1.10.1