# net.jpountz.lz4:lz4 (Maven) vulnerabilities

2 known vulnerabilities (2 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 1.3 (Nov 26, 2014): affected by 2 advisories
- Newest unaffected release: Every release is affected by at least one advisory
- Dependents: 16
- Releases: 7 since 1.0.0 (Jan 8, 2013)
- Registry: https://central.sonatype.com/artifact/net.jpountz.lz4/lz4
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2025-66566: 1.0.0 to 1.3.0 (through the newest release)
- CVE-2025-12183: 1.0.0 to 1.3.0 (through the newest release)

## Advisories (2)

### [CVE-2025-66566](https://cve.now/CVE-2025-66566): yawkat LZ4 Java has a possible information leak in Java safe decompressor

- Severity: High 8.2
- Published: Dec 5, 2025
- Affected: through 1.8.1.
- No fix released. The latest release, 1.3, is still affected.

### [CVE-2025-12183](https://cve.now/CVE-2025-12183): org.lz4:lz4-java - Out-of-Bounds Memory Access

- Severity: High 8.8
- Published: Nov 28, 2025
- Affected: from 1.0.0, through 1.8.0; through 1.3.0.
- No fix released. The latest release, 1.3, is still affected.

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