LZ4 Java Compression has Out-of-bounds memory operations which can cause DoS
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.
This is fixed in a forked release: at.yawk.lz4:lz4-java version 1.8.1. The original project has been archived: https://github.com/lz4/lz4-java, and Sonatype has added a redirect from org.lz4:lz4-java:1.8.1 to the new group ID.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | at.yawk.lz4:lz4-java | < 1.8.1 | 1.8.1 |
| Java / Kotlin (Maven) | net.jpountz.lz4:lz4 | <= 1.3.0 | no fix |
| Java / Kotlin (Maven) | org.lz4:lz4-java | < 1.8.1 | 1.8.1 |
| Java / Kotlin (Maven) | org.lz4:lz4-pure-java | <= 1.8.0 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-12183
- https://github.com/yawkat/lz4-java
- https://github.com/yawkat/lz4-java/releases/tag/v1.8.1
- https://sites.google.com/sonatype.com/vulnerabilities/cve-2025-12183
- https://www.sonatype.com/security-advisories/cve-2025-12183
- http://www.openwall.com/lists/oss-security/2025/12/01/5
- CVSS vector
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- Weakness (CWE)
CWE-125- Platform
- Java / Kotlin (Maven)
- Package
at.yawk.lz4:lz4-java, net.jpountz.lz4:lz4, org.lz4:lz4-java- Disclosed
- 28.11.2025
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vqf4-7m7x-wgfc - CC BY 4.0
Vulnerability history: at.yawk.lz4:lz4-java
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 11.2025 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 4
- Low 1
Disclosures per year
- 2025: 2
- 2026: 6
-
LZ4 Java Compression has Out-of-bounds memory operations which can cause DoS this entry
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