PT-2025-49304

CVE-2025-66566

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Published

2025-01-01

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Updated

2026-10-30

Description by

CVSS 3.1
9.8
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions yawkat LZ4 Java versions 1.10.0 and earlier
Description yawkat LZ4 Java provides LZ4 compression for Java. Insufficient clearing of the output buffer in Java-based decompressor implementations 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.
Recommendations Update to version 1.10.1 or later.
Exploitability
Exploit
Fix
Vendors
Affected products
Related identifiers
GHSA-CMP6-M4WJ-Q63Q
ALSA-2026:0752
ALSA-2026:20568
CLEANSTART-2026-AO61361
CLEANSTART-2026-FR63847
CLEANSTART-2026-KP60419
CLEANSTART-2026-MK18357
CLEANSTART-2026-UB44506
CLEANSTART-2026-YG17751
ECHO-A02E-E8DE-2B03
RHSA-2026:0751
RHSA-2026:0752
RHSA-2026:1823
RHSA-2026:1870
RHSA-2026:1871
RHSA-2026:20568
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