CVE-2025-66566
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.2
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.60%
- CWE
- CWE-201
- Published
- 2025-12-05
- Last modified
- 2026-03-13
Affected products
- yawkat lz4-java
Weakness type
Related vulnerabilities
- CVE-2026-78374 — Joomla Extension - joomlart.com - Open mail relay via contact AJAX endpoint in T4 Page Builder extension < 2.3.0
- CVE-2026-78303 — Joomla Extension - joomshaper.com - Unvalidated Email Destination & Form Manipulation in Booking Requests in SP Property < 4.1.4
- CVE-2026-87015 — Open WebUI: A user's session cookies are sent to tool servers configured for bearer authentication
- CVE-2026-65812 — Microsoft Teams for Android Information Disclosure Vulnerability
- CVE-2026-86505 — In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust check leaked project metadata to...
- CVE-2026-86497 — In JetBrains YouTrack before 2026.2.18769 changing a mailbox host without re-authentication allowed...
- CVE-2026-85307 — WordPress KP Agent Ready plugin < 1.2.08 - Sensitive Data Exposure vulnerability
- CVE-2026-77123 — Nexus Repository 3 - Webhook Secret Disclosure via Capability Read API