CVE-2026-93451: snappy-java: Heap buffer overflow in Snappy.uncompress*Array typed-array methods
Snappy.uncompressCharArray, uncompressShortArray, uncompressIntArray, uncompressLongArray, uncompressFloatArray and uncompressDoubleArray sized the result array by dividing the declared uncompressed byte length by the element size, but native code wrote the full byte length. If the declared length is not a multiple of the element size, up to 7 bytes are written past the end of the Java array, corrupting the heap.
References
- github.com/advisories/GHSA-gwq9-9ffj-mvrv
- github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java
- github.com/xerial/snappy-java/commit/943c6043a292568575e8347af4507d015e802c75
- github.com/xerial/snappy-java/issues/729
- github.com/xerial/snappy-java/pull/739
- github.com/xerial/snappy-java/releases/tag/v1.1.10.9
- github.com/xerial/snappy-java/security/advisories/GHSA-gwq9-9ffj-mvrv
- nvd.nist.gov/vuln/detail/CVE-2026-93451
- www.vulncheck.com/advisories/snappy-java-through-1.1.10.8-buffer-overflow-via-typed-uncompress-methods
Code Behaviors & Features
Detect and mitigate CVE-2026-93451 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →