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Insertion of Sensitive Information Into Sent Data

CVE-2025-66566

High
8.2/10

Summary

yawkat LZ4 Java provides LZ4 compression for Java. Insufficient clearing of the output buffer in Java-based decompressor implementations in lz4-java versions through 1.10.0 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.

  • LOW
  • NETWORK
  • NONE
  • NONE

CWE-201 - Insertion of Sensitive Information Into Sent Data

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

References

Advisory Timeline

  • Published