snappy-java: JVM crash from unchecked ranges in Snappy.arrayCopy and SnappyOutputStream.rawWrite

中 5.9CVE-2026-116590 · GHSA-xqrx-qh46-34m7 · 26/10/2026 公開 · 30/10/2026 更新

要点

CVE-2026-116590 は org.xerial.snappy:snappy-java に影響する深刻度「中」 (CVSS 5.9) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.41%（全脆弱性の 35.2% より高い）。
対処：1.1.10.9 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
org.xerial.snappy:snappy-java Maven	`< 1.1.10.9`	`1.1.10.9`

概要

Impact

Snappy.arrayCopy(Object src, int offset, int byteLength, Object dest, int destOffset) called a native memcpy without validating the ranges. A negative or oversized byteLength or offset read or wrote outside the arrays and crashed the JVM. SnappyOutputStream.rawWrite and SnappyInputStream.rawRead, and therefore the typed-array write/read methods, pass caller-supplied ranges to this method.

Patches

Fixed in 1.1.10.9 (#741). Snappy.arrayCopy checks both ranges before copying. The stream read/write methods validate offsets and lengths, and reject typed-array ranges whose byte size overflows int.

Workarounds

Validate offsets and lengths before calling these methods.

NVD の説明

snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. Prior to 1.1.10.9, Snappy.arrayCopy(Object src, int offset, int byteLength, Object dest, int destOffset) passes caller-supplied ranges to native memcpy without validating either array, allowing negative or oversized byteLength and offset values to read or write outside array bounds and crash the JVM. SnappyOutputStream.rawWrite and SnappyInputStream.rawRead, including their typed-array write and read methods, pass caller-controlled ranges through this primitive, and typed-array byte-size calculations can overflow int. This issue is fixed in version 1.1.10.9.