CVE-2026-109395

NameCVE-2026-109395
DescriptionNing 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
compress-lzf (PTS)forky, sid, bookworm, trixie1.0.4-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
compress-lzfsource(unstable)(unfixed)

Notes

https://github.com/ning/compress/pull/68
Fixed by: https://github.com/ning/compress/commit/06bdc3744a96b736a7118891f403e44c664f108b (compress-lzf-1.2.0)

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