{"schema":"threatline.record/2","record":{"id":"CVE-2026-109395","aliases":[],"summary":"Ning compress-lzf before 1.2.0 Out-of-Bounds Memory Access via UnsafeChunkDecoder","details":"Ning compress-lzf before 1.2.0 contains an out-of-bounds memory access vulnerability in the sun.misc.Unsafe based UnsafeChunkDecoder that fails to validate back-references and literal runs. Attackers can supply crafted LZF streams to applications using the default LZFDecoder to leak unrelated JVM heap memory into decompressed output or crash the JVM.","categories":["Unclassified"],"product":"compress-lzf","vendor":"ning","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109395","source_modified_at":"2026-10-20T14:29:50.505Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"compress-lzf","vendor":"ning","versions":[{"version":"0","lessThan":"1.2.0","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-109395","source_modified_at":"2026-10-20T14:29:50.505Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"compress-lzf","ecosystem":null},"version":"1.2.0","basis":"first unaffected version stated in the CVE record"}],"cvss":8.8,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00403,"percentile":0.33416,"score_date":"2026-10-23"},"published_at":"2026-10-20T00:46:04.633Z","modified_at":"2026-10-20T14:29:50.505Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-109395","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-20T14:29:50.505Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-109395","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/ning/compress/pull/68","tags":["patch","issue-tracking"]},{"source":"CVE List","url":"https://github.com/ning/compress/commit/06bdc3744a96b736a7118891f403e44c664f108b","tags":["patch"]},{"source":"CVE List","url":"https://github.com/ning/compress/blob/compress-lzf-1.1.3/src/main/java/com/ning/compress/lzf/impl/UnsafeChunkDecoder.java#L104","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/github/securitylab/discussions/970","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/ning/compress","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/ning-compress-lzf-before-1.2.0-out-of-bounds-memory-access-via-unsafechunkdecoder","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-20T14:29:43.002487Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-20T14:29:50.505Z","content_hash":"1403c3f3053a7cfde7355ffbf0aafabc5bf6862bd6b217a034fcfc6a2c31b243"}}