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CVE-2025-66566
Good to know:
Date: December 5, 2025
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.
Severity Score
Related Resources (5)
Severity Score
Weakness Type (CWE)
Insertion of Sensitive Information Into Sent Data
CWE-201Top Fix
Upgrade Version
Upgrade to version at.yawk.lz4:lz4-java:1.10.1;https://github.com/yawkat/lz4-java.git - v1.10.1
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | NONE |
| Availability (A): | NONE |