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yawkat lz4-java vulnerabilities

7 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 7 published in the last 12 months.

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Latest yawkat lz4-java vulnerabilities

• CVE-2026-106453 — yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError (CVSS 5.3)
• CVE-2026-106452 — yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header (CVSS 5.3)
• CVE-2026-106451 — yawkat LZ4 Java: Native library extraction to a shared temporary directory is vulnerable to file replacement by another local user (CVSS 7.3)
• CVE-2026-106450 — yawkat LZ4 Java: LZ4FrameInputStream reallocates block buffers for every frame, allowing CPU and GC amplification from small inputs (CVSS 5.3)
• CVE-2026-106449 — yawkat LZ4 Java: LZ4BlockInputStream with stopOnEmptyBlock=false recurses once per empty block, causing StackOverflowError (CVSS 3.7)
• CVE-2026-59949 — yawkat LZ4 Java: JVM Crash via Null Byte Array in lz4-java Streaming XXHash JNI (StreamingXXHash32JNI / StreamingXXHash64JNI) (CVSS 6.5)
• CVE-2025-66566 — yawkat LZ4 Java has a possible information leak in Java safe decompressor (CVSS 8.2)