lz4-java: yawkat LZ4 Java provides LZ4 compression for Java
CVE-2026-106453 is fixed in lz4-java on 1 platform by DEBIAN-CVE-2026-106453 (version 1.11.2+ds1-1), released October 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.
yawkat LZ4 Java provides LZ4 compression for Java. Prior to 1.11.2, LZ4DecompressorWithLength uses getDecompressedLength to trust the four-byte decompressed-length header before validating the compressed input, allowing a five-byte attacker-supplied input whose header declares a large output size to request up to approximately 2 GiB and exhaust the JVM heap. Convenience overloads backed by LZ4FastDecompressor or LZ4SafeDecompressor allocate the untrusted size, while overloads that write to a caller-provided destination buffer are not affected because the caller controls the destination size. This issue is fixed in version 1.11.2.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| lz4-java · Debian 14 | 1.11.2+ds1-1 | DEBIAN-CVE-2026-106453 | Oct 7, 2026 |
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