{"schema":"threatline.record/2","record":{"id":"CVE-2026-93451","aliases":["GHSA-gwq9-9ffj-mvrv"],"summary":"snappy-java: Heap buffer overflow in Snappy.uncompress*Array typed-array methods","details":"### Impact\n`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.\n\n### Patches\nFixed in 1.1.10.9 ([#739](https://github.com/xerial/snappy-java/pull/739)). These methods now reject uncompressed lengths that are not a multiple of the element size with `SnappyIOException`.\n\n### Workarounds\nCheck that `Snappy.uncompressedLength(input)` is a multiple of the element size before calling these methods.","categories":["Libraries & packages"],"product":"org.xerial.snappy:snappy-java","vendor":"xerial","ecosystem":"maven","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-gwq9-9ffj-mvrv","source_modified_at":"2026-10-27T15:33:43Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"ecosystem":"maven","name":"org.xerial.snappy:snappy-java"},"range":"<= 1.1.10.8"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93451","source_modified_at":"2026-10-08T15:51:52.357Z","fetched_at":"2026-10-27T16:27:21.584480Z","product":"snappy-java","vendor":"xerial","versions":[{"version":"0","lessThanOrEqual":"1.1.10.8","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-gwq9-9ffj-mvrv","source_modified_at":"2026-10-27T15:47:24.498155855Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"name":"org.xerial.snappy:snappy-java","ecosystem":"Maven","purl":"pkg:maven/org.xerial.snappy/snappy-java"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.10.9"}]}],"versions":["1.0.1-rc1","1.0.1-rc2","1.0.1-rc3","1.0.1-rc4","1.0.3","1.0.3-rc1","1.0.3-rc2","1.0.3-rc3","1.0.3-rc4","1.0.3.1","1.0.3.2","1.0.3.3","1.0.4","1.0.4.1","1.0.5","1.0.5-M1","1.0.5-M2","1.0.5-M3","1.0.5-M4","1.0.5.1","1.0.5.2","1.0.5.3","1.0.5.4","1.1.0","1.1.0-M1","1.1.0-M2","1.1.0-M3","1.1.0-M4","1.1.0.1","1.1.1","1.1.1-M1","1.1.1-M2","1.1.1-M3","1.1.1-M4","1.1.1.1","1.1.1.2","1.1.1.3","1.1.1.4","1.1.1.5","1.1.1.6","1.1.1.7","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"]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-gwq9-9ffj-mvrv","source_modified_at":"2026-10-27T15:33:43Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"ecosystem":"maven","name":"org.xerial.snappy:snappy-java"},"version":"1.1.10.9"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-gwq9-9ffj-mvrv","source_modified_at":"2026-10-27T15:47:24.498155855Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"name":"org.xerial.snappy:snappy-java","ecosystem":"Maven","purl":"pkg:maven/org.xerial.snappy/snappy-java"},"version":"1.1.10.9"}],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00503,"percentile":0.42844,"score_date":"2026-10-27"},"published_at":"2026-09-17T23:25:11.585Z","modified_at":"2026-10-27T15:47:24.498155855Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-gwq9-9ffj-mvrv","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27T15:33:43Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93451","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-08T15:51:52.357Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-gwq9-9ffj-mvrv","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27T15:47:24.498155855Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93451","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"url":"https://github.com/xerial/snappy-java/security/advisories/GHSA-gwq9-9ffj-mvrv","source":"GitHub Advisory Database"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93451","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/xerial/snappy-java/issues/729","tags":["issue-tracking"]},{"url":"https://github.com/xerial/snappy-java/pull/739","source":"GitHub Advisory Database"},{"url":"https://github.com/xerial/snappy-java/commit/943c6043a292568575e8347af4507d015e802c75","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/snappy/Snappy.java#L802","tags":["technical-description"]},{"url":"https://github.com/xerial/snappy-java/releases/tag/v1.1.10.9","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/snappy-java-through-1.1.10.8-buffer-overflow-via-typed-uncompress-methods","tags":["third-party-advisory"]},{"url":"https://github.com/advisories/GHSA-gwq9-9ffj-mvrv","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/xerial/snappy-java","tags":["product"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-09-21T16:28:43.993959Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-27T15:47:24.498155855Z","content_hash":"b358a9be79a7c68d3620d8cc7c62d9e2ea43f8598d1c75d5b47ddd92b4658d30"}}