xerial snappy-java up to 1.1.10.8 Snappy.uncompress buffer overflow

Summaryinfo

A vulnerability, which was classified as critical, was found in xerial snappy-java up to 1.1.10.8. Affected is the function Snappy.uncompress. Such manipulation leads to buffer overflow. This vulnerability is listed as CVE-2026-93451. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in xerial snappy-java up to 1.1.10.8 and classified as critical. Affected by this issue is the function Snappy.uncompress. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is integrity, and availability. CVE summarizes:

snappy-java through 1.1.10.8 contains a buffer overflow vulnerability in typed Snappy.uncompress*Array methods that allocate output arrays by dividing uncompressed length by element size but pass the undivided length to native code. Attackers controlling compressed input can cause misaligned length values to write past array bounds with attacker-controlled bytes, corrupting heap memory.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-93451 since 09/18/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/18/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Programming Language Software

Vendor

• xerial

Name

• snappy-java

Version

• 1.1.10.0
• 1.1.10.1
• 1.1.10.2
• 1.1.10.3
• 1.1.10.4
• 1.1.10.5
• 1.1.10.6
• 1.1.10.7
• 1.1.10.8

Website

• Product: https://github.com/xerial/snappy-java/

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