{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-66909","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-07-28T09:44:19.058Z","datePublished":"2026-08-06T10:23:23.571Z","dateUpdated":"2026-08-07T00:01:52.513Z"},"containers":{"cna":{"affected":[{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.cxf:cxf-rt-transports-jms","product":"Apache CXF","vendor":"Apache Software Foundation","versions":[{"lessThan":"4.2.3","status":"affected","version":"4.2.0","versionType":"semver"},{"lessThan":"4.1.8","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThan":"3.6.12","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Reported by n0mi1k"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(252, 252, 251);\">Apache CXF's JMS transport deserializes the body of any inbound </span><code>JMS ObjectMessage</code><span style=\"background-color: rgb(252, 252, 251);\">&nbsp;using native Java deserialization, with no type restrictions in place. An</span><span style=\"background-color: rgb(252, 252, 251);\">y attacker able to place a message on the service's JMS destination can submit a malicious serialized object, leading to denial of service or, if a suitable gadget class is on </span><span style=\"background-color: rgb(252, 252, 251);\">the </span><span style=\"background-color: rgb(252, 252, 251);\">classpath, </span><span style=\"background-color: rgb(252, 252, 251);\">remote </span><span style=\"background-color: rgb(252, 252, 251);\">code </span><span style=\"background-color: rgb(252, 252, 251);\">execution. </span><span style=\"background-color: rgb(252, 252, 251);\">The </span><span style=\"background-color: rgb(252, 252, 251);\">fix </span><span style=\"background-color: rgb(252, 252, 251);\">disables </span><span style=\"background-color: rgb(252, 252, 251);\"><code>ObjectMessage</code></span><span style=\"background-color: rgb(252, 252, 251);\">&nbsp;deserialization </span><span style=\"background-color: rgb(252, 252, 251);\">by </span><span style=\"background-color: rgb(252, 252, 251);\">default, </span><span style=\"background-color: rgb(252, 252, 251);\">with </span><span style=\"background-color: rgb(252, 252, 251);\">a </span><span style=\"background-color: rgb(252, 252, 251);\">configuration </span><span style=\"background-color: rgb(252, 252, 251);\">switch </span><span style=\"background-color: rgb(252, 252, 251);\">to </span><span style=\"background-color: rgb(252, 252, 251);\">re-enable </span><span style=\"background-color: rgb(252, 252, 251);\">it </span><span style=\"background-color: rgb(252, 252, 251);\">if </span><span style=\"background-color: rgb(252, 252, 251);\">needed.&nbsp;</span>Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue."}],"value":"Apache CXF's JMS transport deserializes the body of any inbound JMS ObjectMessage using native Java deserialization, with no type restrictions in place. Any attacker able to place a message on the service's JMS destination can submit a malicious serialized object, leading to denial of service or, if a suitable gadget class is on the classpath, remote code execution. The fix disables ObjectMessage deserialization by default, with a configuration switch to re-enable it if needed. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue."}],"metrics":[{"other":{"content":{"text":"important"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-08-06T10:23:23.571Z"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/lr5d4tg6tf7j29jmw8wt242oowonjqpx"}],"source":{"discovery":"UNKNOWN"},"title":"Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-06T15:09:27.613808Z","id":"CVE-2026-66909","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-06T15:09:42.879Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/08/06/18"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-08-07T00:01:52.513Z"}}]}}