CLEANSTART-2026-EA15585 yawkat LZ4 Java provides LZ4 compression for Java

Security vulnerability affects the apache-nifi package. yawkat LZ4 Java provides LZ4 compression for Java...

CLEANSTART-2026-IA44862 yawkat LZ4 Java provides LZ4 compression for Java

Security vulnerability affects the apache-nifi package. yawkat LZ4 Java provides LZ4 compression for Java...

CLEANSTART-2026-UB44506 yawkat LZ4 Java provides LZ4 compression for Java

Security vulnerability affects the apache-hive package. yawkat LZ4 Java provides LZ4 compression for Java...

EUVD-2026-93868

yawkat LZ4 Java: Native library extraction to a shared temporary directory is vulnerable to file replacement by another local user...

EUVD-2026-93862

yawkat LZ4 Java: LZ4BlockInputStream with stopOnEmptyBlock=false recurses once per empty block, causing StackOverflowError...

EUVD-2026-93865

yawkat LZ4 Java: LZ4FrameInputStream reallocates block buffers for every frame, allowing CPU and GC amplification from small inputs...

EUVD-2026-93871

yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header...

yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header

Summary LZ4BlockInputStream grows its compressed-input buffer to the attacker-controlled compressedLen value from the legacy LZ4Block stream header before reading any payload bytes. A header-only input can therefore trigger a near-2 GiB allocation and exhaust the JVM heap. Details In...

EUVD-2026-93872

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...

GHSA-6CX8-RJF8-PR8G 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

Summary LZ4DecompressorWithLength.decompressbyte, int allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says 0x40000000 makes the JVM commit a gigabyte and can cause heap exhaustion. Details...

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

Summary LZ4DecompressorWithLength.decompressbyte, int allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says 0x40000000 makes the JVM commit a gigabyte and can cause heap exhaustion. Details...

yawkat LZ4 Java: LZ4BlockInputStream allocates an unvalidated compressed length from the stream header

LZ4BlockInputStream grows its compressed-input buffer to the attacker-controlled compressedLen value from the legacy LZ4Block stream header before reading any payload bytes. A header-only input can therefore trigger a near-2 GiB allocation and exhaust the JVM heap...

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

LZ4DecompressorWithLength.decompressbyte, int allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says 0x40000000 makes the JVM commit a gigabyte and can cause heap exhaustion...

yawkat LZ4 Java: LZ4FrameInputStream reallocates block buffers for every frame, allowing CPU and GC amplification from small inputs

LZ4FrameInputStream allocates two new buffers of the frame's maximum block size, up to 4 MiB each, every time it reads a frame header. Because concatenated frames are read by default, an input made of many minimal empty frames forces about 8 MiB of zeroed heap allocation for every 11 input bytes...

UBUNTU-CVE-2026-106451

yawkat LZ4 Java provides LZ4 compression for Java. From 1.7.0 until 1...

UBUNTU-CVE-2026-106450

yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.4, ne...

UBUNTU-CVE-2026-106452

yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.2, ne...

Linux Distros Unpatched Vulnerability : CVE-2026-106452

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.2, net.jpountz.lz4.LZ4BlockInputStream refill validates that the compressedLen field in a legac...

Linux Distros Unpatched Vulnerability : CVE-2026-106451

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - yawkat LZ4 Java provides LZ4 compression for Java. From 1.7.0 until 1.11.4, net.jpountz.util.Native.load uses File.createTempFile to create an exclusive tempora...

Linux Distros Unpatched Vulnerability : CVE-2026-106450

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.4, net.jpountz.lz4.LZ4FrameInputStream readHeader allocates two new 4 MiB block buffers wheneve...