lz4-pure-java CVEs

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Overview 2 matches · 0 protected · 0 exploited · 0 CISA KEV · 0 public PoC · 0 EPSS ≥ 0.5

2matches 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 0public PoC0.0% 0EPSS ≥ 0.50.0%

Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 2 100.0% Outside Waratek scope 0 0.0% Not applicable 0 0.0% Withdrawn CVE 0 0.0%

Critical 0 0.0% High 2 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%

blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 2 100.0% not established 0 0.0% unrecorded 0 0.0%

Exploited 0 0.0% Working exploit published 0 0.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 2 100.0%

split by StatusSeverityProtectionExploit maturity peak 1 / month

Nov 251 No exploit published1 High1 not blocked1 No public exploit1 Dec 251 No exploit published1 High1 not blocked1 No public exploit1

Nov 25Dec 25

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CVE	Severity	Published▾	Status	Exploitation	Description
CVE-2025-66566	High	2025-12-05	No exploit published	No public exploit	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.
CVE-2025-12183	High	2025-11-28	No exploit published	No public exploit	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.

CVE

Severity

Published▾

Status

Exploitation

Description

CVE-2025-66566

High

2025-12-05

No exploit published

No public exploit

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.

CVE-2025-12183

High

2025-11-28

No exploit published

No public exploit

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.