Uncontrolled Recursion

Overview Affected versions of this package are vulnerable to Uncontrolled Recursion in the refill function when processing LZ4 block streams with stopOnEmptyBlock set to false. An attacker can cause a thread to terminate unexpectedly by providing a stream with a large number of consecutive empty...

Uncontrolled Recursion

Overview org.lz4:lz4-java is a Java port of the LZ4 compression algorithm and the xxHash hashing algorithm. Affected versions of this package are vulnerable to Uncontrolled Recursion in the refill function when processing LZ4 block streams with stopOnEmptyBlock set to false. An attacker can cause...

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

When LZ4BlockInputStream is configured with stopOnEmptyBlock = false the mode for reading concatenated block streams, it handles each empty block by calling refill recursively. A long run of empty blocks exhausts the thread stack and throws StackOverflowError out of read or skip...

CVE-2026-106449 yawkat LZ4 Java: LZ4BlockInputStream with stopOnEmptyBlock=false recurses once per empty block, causing StackOverflowError

yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.4, net.jpountz.lz4.LZ4BlockInputStream configured with stopOnEmptyBlock set to false handles each well-formed empty LZ4Block by recursively calling refill, allowing a long sequence of empty blocks in an attacker-controlled compresse...