CVE-2025-66566

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/yawkat/lz4-java/commit/33d180cb70c4d93c80fb0dc3ab3002f457e93840
https://github.com/yawkat/lz4-java/security/advisories/GHSA-cmp6-m4wj-q63q

Configurations

No configuration.

History

25 Sep 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) yawkat LZ4 Java proporciona compresión LZ4 para Java. La limpieza insuficiente del búfer de salida en implementaciones de descompresores basadas en Java en lz4-java 1.10.0 y anteriores permite a atacantes remotos leer contenidos anteriores del búfer a través de una entrada comprimida manipulada. En aplicaciones donde el búfer de salida se reutiliza sin ser limpiado, esto puede llevar a la divulgación de datos sensibles. Las implementaciones basadas en JNI no se ven afectadas. Esta vulnerabilidad está corregida en 1.10.1.

Information

Published : 2025-12-05 18:15

Updated : 2026-09-25 23:10

NVD link : CVE-2025-66566

Mitre link : CVE-2025-66566

CVE.ORG link : CVE-2025-66566

JSON object : View

Products Affected

No product.

CWE

CWE-201

Insertion of Sensitive Information Into Sent Data

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