{"schema":"threatline.record/2","record":{"id":"CVE-2026-78384","aliases":[],"summary":"Apache CXF: Unbounded DEFLATE Decompression in CXF JOSE/JWE and SAML Processing (Decompression Bomb)","details":"CompressionUtils.inflate() decompressed attacker-controlled DEFLATE data with no output-size cap. A small (~KB) crafted payload could expand to gigabytes on the heap. Reachable via JWE decryption when zip=DEF (e.g. JoseSessionTokenProvider with RSA-OAEP key wrap) and via SAML redirect/POST binding token inflation — in both cases decompression happens before/independent of trust validation.\n\nFix: Added a configurable maximum inflated-size cap (default 10 MiB, org.apache.cxf.compression-max-inflated-size system property) to CompressionUtils.inflate(); aborts with DataFormatException once exceeded.\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.","categories":["Unclassified"],"product":"Apache CXF","vendor":"Apache Software Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-78384","source_modified_at":"2026-10-15T16:16:44.354Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Apache CXF","vendor":"Apache Software Foundation","versions":[{"status":"affected","version":"4.2.0","lessThan":"4.2.4","versionType":"semver"},{"status":"affected","version":"4.0.0","lessThan":"4.1.9","versionType":"semver"},{"status":"affected","version":"0","lessThan":"3.6.13","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-78384","source_modified_at":"2026-10-15T16:16:44.354Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Apache CXF","ecosystem":null},"version":"4.2.4","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-78384","source_modified_at":"2026-10-15T16:16:44.354Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Apache CXF","ecosystem":null},"version":"4.1.9","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-78384","source_modified_at":"2026-10-15T16:16:44.354Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Apache CXF","ecosystem":null},"version":"3.6.13","basis":"first unaffected version stated in the CVE record"}],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00369,"percentile":0.29618,"score_date":"2026-10-23"},"published_at":"2026-10-09T10:18:00.617Z","modified_at":"2026-10-15T16:16:44.354Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-78384","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T16:16:44.354Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-78384","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://lists.apache.org/thread.html/xoh63rlxn0m9koft5j4jxrfd0hf81v3q","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-15T16:16:04.446034Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T16:16:44.354Z","content_hash":"b6ac825b3888ed6456556c5d506d30b2d1a2ed6a115220b281d9b98bd874e0a2"}}