What’s Vulnerable › Vulnerabilities

CVE-2026-93451: snappy-java through 1.1.10.8 Buffer Overflow via typed uncompress methods

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-10-08
• Weakness: CWE-787

Description

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.

Affected products

• xerial snappy-java: through 1.1.10.8

References

• https://github.com/xerial/snappy-java
• https://github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java#L802
• https://github.com/xerial/snappy-java/issues/729
• https://www.vulncheck.com/advisories/snappy-java-through-1.1.10.8-buffer-overflow-via-typed-uncompress-methods

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