{"id":12969,"date":"2026-09-04T18:59:47","date_gmt":"2026-09-04T10:59:47","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-42527"},"modified":"2026-09-04T18:59:47","modified_gmt":"2026-09-04T10:59:47","slug":"cve-2026-42527","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-42527","title":{"rendered":"CVE-2026-42527 [HIGH] &#8211; Deserialization of Untrusted Data vulnerability in Apache Camel.\n\nThe default ObjectInputF"},"content":{"rendered":"<p>Deserialization of Untrusted Data vulnerability in Apache Camel.<\/p>\n<p>The default ObjectInputFilter pattern shipped with several Apache Camel components for defense-in-depth deserialization filtering (&#8216;java.**;javax.**;org.apache.camel.**;!*&#8217;, or the no-&#8216;javax.**&#8217; variant in the aggregation-repository components) uses a recursive &#8216;java.**&#8217; glob that admits classes whose hashCode\/equals\/readObject methods perform network I\/O, notably java.net.URL and java.net.InetAddress. When an attacker can deliver a Java-serialized payload to an affected Camel consumer, deserialization of a HashMap (or any collection that calls hashCode on its elements) containing java.net.URL keys causes the JVM to issue DNS queries to the attacker-supplied host during the deserialization side-effect. The class-level filter check passes because the resulting object&#8217;s class (HashMap) is allow-listed; the DNS query is observable on an attacker-controlled DNS server, providing an out-of-band side channel. The exposure is highest on the camel-jms family because JmsBinding.extractBodyFromJms invokes ObjectMessage.getObject() unconditionally when mapJmsMessage=true (default). Affected components: camel-jms, camel-sjms, camel-amqp, camel-mina, camel-netty, camel-netty-http, camel-vertx-http, camel-infinispan, and the aggregation repository components camel-leveldb, camel-cassandraql, camel-consul, camel-sql (JDBC aggregation repository).<br \/>\nThis issue affects Apache Camel: from 4.14.0 before 4.14.8, from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0.<\/p>\n<p>Users are recommended to upgrade to a version that contains the CAMEL-23372 fix once available: 4.21.0 for the 4.21.x line, 4.18.3 for the 4.18.x line, and 4.14.8 for the 4.14.x line. For deployments that cannot upgrade immediately, configure a JMS-provider-side allow-list (Apache ActiveMQ Artemis &#8216;deserializationAllowList&#8217; \/ &#8216;deserializationDenyList&#8217;, Apache ActiveMQ Classic &#8216;org.apache.activemq.SERIALIZABLE_PACKAGES&#8217;) as the primary mitigation, and\/or override the in-code default via the endpoint-level &#8216;deserializationFilter&#8217; option or the JVM-wide &#8216;-Djdk.serialFilter&#8217; system property with an explicit deny: &#8216;!java.net.**;java.**;javax.**;org.apache.camel.**;!*&#8217; (or &#8216;!java.net.**;java.**;org.apache.camel.**;!*&#8217; for the aggregation-repository components, which do not include javax.**).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Deserialization of Untrusted Data vulnerability in Apache Camel.<\/p>\n<p>The default ObjectInputFilter pattern shipped with several Apache Camel components for defense-in-depth deserialization filtering (&#8216;ja<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-12969","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/12969","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}