CVE-2025-12183

org.lz4:lz4-java - Out-of-Bounds Memory Access

State: Published
Severity: 8.8 High
Published: Nov 28, 2025
Updated: Dec 29, 2025
Reserved: Oct 24, 2025

Description

Out-of-bounds memory operations in org.lz4:lz4-java 1.8.0 and earlier allow remote attackers to cause denial of service and read adjacent memory via untrusted compressed input.

Scores

CVSS	Score	Vector	Source
4.0	8.8 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N	Sonatype

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
org.lz4:lz4-java	1.0.0 through 1.8.0Affected
org.lz4:lz4-pure-java	1.0.0 through 1.8.0Affected
net.jpountz.lz4:lz4	1.0.0 through 1.8.0Affected

References

https://www.sonatype.com/security-advisories/cve-2025-12183third-party-advisory
https://github.com/yawkat/lz4-java/releases/tag/v1.8.1patch
http://www.openwall.com/lists/oss-security/2025/12/01/5

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