# at.yawk.lz4:lz4-java (Maven) vulnerabilities

8 known vulnerabilities (3 high, 4 medium, 1 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Dependents: 534
- Registry: https://central.sonatype.com/artifact/at.yawk.lz4/lz4-java

## Advisories (8)

### [CVE-2026-106453](https://cve.now/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

- Severity: Medium 5.3
- Published: Oct 6, 2026
- Affected: fixed in 1.11.2.

### [CVE-2026-106452](https://cve.now/CVE-2026-106452): yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header

- Severity: Medium 5.3
- Published: Oct 6, 2026
- Affected: fixed in 1.11.2.

### [CVE-2026-106451](https://cve.now/CVE-2026-106451): yawkat LZ4 Java: Native library extraction to a shared temporary directory is vulnerable to file replacement by another local user

- Severity: High 7.3
- Published: Oct 6, 2026
- Affected: fixed in 1.11.4.

### [CVE-2026-106450](https://cve.now/CVE-2026-106450): yawkat LZ4 Java: LZ4FrameInputStream reallocates block buffers for every frame, allowing CPU and GC amplification from small inputs

- Severity: Medium 5.3
- Published: Oct 6, 2026
- Affected: fixed in 1.11.4.

### [CVE-2026-106449](https://cve.now/CVE-2026-106449): yawkat LZ4 Java: LZ4BlockInputStream with stopOnEmptyBlock=false recurses once per empty block, causing StackOverflowError

- Severity: Low 3.7
- Published: Oct 6, 2026
- Affected: fixed in 1.11.4.

### [CVE-2026-59949](https://cve.now/CVE-2026-59949): yawkat LZ4 Java: JVM Crash via Null Byte Array in lz4-java Streaming XXHash JNI (StreamingXXHash32JNI / StreamingXXHash64JNI)

- Severity: Medium 6.5
- Published: Aug 18, 2026
- Affected: fixed in 1.11.1.

### [CVE-2025-66566](https://cve.now/CVE-2025-66566): yawkat LZ4 Java has a possible information leak in Java safe decompressor

- Severity: High 8.2
- Published: Dec 5, 2025
- Affected: fixed in 1.10.1.

### [CVE-2025-12183](https://cve.now/CVE-2025-12183): org.lz4:lz4-java - Out-of-Bounds Memory Access

- Severity: High 8.8
- Published: Nov 28, 2025
- Affected: fixed in 1.8.1.

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