Buffer overflow in Xerial Snappy-Java

CVE-2026-93451

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.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-93451?
CVE-2026-93451 is a medium-severity vulnerability in Xerial Snappy-Java, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-09-18.
How severe is CVE-2026-93451?
Medium severity. CVSS v3 base score is 6.5 out of 10.