Information Exposure Affecting lz4-java package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-LZ4JAVA-14193352
- published6 Dec 2025
- disclosed5 Dec 2025
Introduced: 5 Dec 2025
NewCVE-2025-66566 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable lz4-java.
NVD Description
Note: Versions mentioned in the description apply only to the upstream lz4-java package and not the lz4-java package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.