Critical severity9.1NVD Advisory· Published Oct 20, 2026
CVE-2026-109395
CVE-2026-109395
Description
Ning compress-lzf before 1.2.0 contains an out-of-bounds memory access vulnerability in the sun.misc.Unsafe based UnsafeChunkDecoder that fails to validate back-references and literal runs. Attackers can supply crafted LZF streams to applications using the default LZFDecoder to leak unrelated JVM heap memory into decompressed output or crash the JVM.
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Affected products
1Patches
Vulnerability mechanics
References
4- github.com/ning/compress/blob/compress-lzf-1.1.3/src/main/java/com/ning/compress/lzf/impl/UnsafeChunkDecoder.javanvd
- github.com/ning/compress/commit/06bdc3744a96b736a7118891f403e44c664f108bnvd
- github.com/ning/compress/pull/68nvd
- www.vulncheck.com/advisories/ning-compress-lzf-before-1.2.0-out-of-bounds-memory-access-via-unsafechunkdecodernvd
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