snappy-java: Heap buffer overflow in Snappy.uncompress*Array typed-array methods

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0030, the 22nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:16 UTC First seen by agentprime
2. 31 Oct 2026, 14:16 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-gwq9-9ffj-mvrv
• OSV: GHSA-gwq9-9ffj-mvrv
• github.com/xerial/snappy-java/security/advisories/GHSA-gwq9-9ffj-mvrv
• nvd.nist.gov/vuln/detail/CVE-2026-93451
• github.com/xerial/snappy-java/issues/729
• github.com/xerial/snappy-java/pull/739
• github.com/xerial/snappy-java/commit/943c6043a292568575e8347af4507d015e802c75
• github.com/xerial/snappy-java
• github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java#L802
• github.com/xerial/snappy-java/releases/tag/v1.1.10.9
• www.vulncheck.com/advisories/snappy-java-through-1.1.10.8-buffer-overflow-via-typed-uncompress-methods

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.