{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-78384", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-08-24T13:44:56.686Z", "datePublished": "2026-10-09T10:18:00.617Z", "dateUpdated": "2026-10-09T11:07:58.947Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-09T10:18:00.617Z"}, "title": "Apache CXF: Unbounded DEFLATE Decompression in CXF JOSE/JWE and SAML Processing (Decompression Bomb)", "source": {"discovery": "EXTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache CXF", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.cxf:cxf-core", "packageURL": "pkg:maven/org.apache.cxf/cxf-core", "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"}], "descriptions": [{"value": "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 \u2014 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.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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 \u2014 in both cases decompression happens before/independent of trust validation.<br><br>Fix: 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.<br>Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue."}]}], "references": [{"url": "https://lists.apache.org/thread.html/xoh63rlxn0m9koft5j4jxrfd0hf81v3q", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "moderate"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "Guanping Zhang reported this vulnerability.", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/10/09/6"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-10-09T11:07:58.947Z"}}]}}

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{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.cxf:cxf-core", "packageURL": "pkg:maven/org.apache.cxf/cxf-core", "product": "Apache CXF", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "4.2.4", "status": "affected", "version": "4.2.0", "versionType": "semver"}, {"lessThan": "4.1.9", "status": "affected", "version": "4.0.0", "versionType": "semver"}, {"lessThan": "3.6.13", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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 \u2014 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."}], "id": "CVE-2026-78384", "lastModified": "2026-10-09T11:17:02.937", "metrics": {}, "published": "2026-10-09T11:17:02.937", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread.html/xoh63rlxn0m9koft5j4jxrfd0hf81v3q"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received"}

{}

{"created": "2026-10-09T11:30:06.429808+00:00", "updated": "2026-10-09T11:30:06.429814+00:00", "vendors": [], "weaknesses": ["CWE-399", "CWE-788"]}