Out-of-bounds Read Affecting com.ning:compress-lzf package, versions [0.9.0,1.2.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-COMNING-21280278
- published20 Oct 2026
- disclosed20 Oct 2026
- creditUnknown
Introduced: 20 Oct 2026
NewCVE-2026-109395 (opens in a new tab)How to fix?
Upgrade com.ning:compress-lzf to version 1.2.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the decodeChunk method of UnsafeChunkDecoder, which resolves back references and copies literal runs through sun.misc.Unsafe without confirming that a back reference lands at or after the start of the output region, or that a literal run near the end of the input lies within the input array. An attacker can read memory outside both arrays into the decompressed result, and crash the JVM, by supplying LZF data whose back reference offset points before the first byte written or whose trailing literal run extends past the end of the compressed input, since Unsafe accesses carry no bounds checking. This requires the application to decompress LZF data from a source it does not control and the Unsafe based decoder to be the one in use.