{"cve":"CVE-2026-42527","nvd":{"published":"2026-07-06T09:16:35.657","modified":"2026-10-25T15:10:00.147","status":"Analyzed","description":"Deserialization of Untrusted Data vulnerability in Apache Camel.\n\nThe default ObjectInputFilter pattern shipped with several Apache Camel components for defense-in-depth deserialization filtering ('java.**;javax.**;org.apache.camel.**;!*', or the no-'javax.**' variant in the aggregation-repository components) uses a recursive 'java.**' 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'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).\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.\n\nUsers 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 'deserializationAllowList' / 'deserializationDenyList', Apache ActiveMQ Classic 'org.apache.activemq.SERIALIZABLE_PACKAGES') as the primary mitigation, and/or override the in-code default via the endpoint-level 'deserializationFilter' option or the JVM-wide '-Djdk.serialFilter' system property with an explicit deny: '!java.net.**;java.**;javax.**;org.apache.camel.**;!*' (or '!java.net.**;java.**;org.apache.camel.**;!*' for the aggregation-repository components, which do not include javax.**).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-502"],"references":["https://camel.apache.org/security/CVE-2026-42527.html","http://www.openwall.com/lists/oss-security/2026/07/05/4"],"products":["apache:camel"],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-42527","score":0.00668,"percentile":0.51612,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-8h6p-jvhf-9hcr","url":"https://osv.dev/vulnerability/GHSA-8h6p-jvhf-9hcr","summary":"Apache Camel: Permissive default ObjectInputFilter pattern admits java.net.** and enables DNS-based information disclosure","modified":"2026-09-10T03:50:53.079533591Z","packages":[{"ecosystem":"Maven","name":"org.apache.camel:camel-jms","purl":"pkg:maven/org.apache.camel/camel-jms","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-jms","purl":"pkg:maven/org.apache.camel/camel-jms","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-jms","purl":"pkg:maven/org.apache.camel/camel-jms","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-sjms","purl":"pkg:maven/org.apache.camel/camel-sjms","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-sjms","purl":"pkg:maven/org.apache.camel/camel-sjms","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-sjms","purl":"pkg:maven/org.apache.camel/camel-sjms","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-amqp","purl":"pkg:maven/org.apache.camel/camel-amqp","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-amqp","purl":"pkg:maven/org.apache.camel/camel-amqp","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-amqp","purl":"pkg:maven/org.apache.camel/camel-amqp","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-mina","purl":"pkg:maven/org.apache.camel/camel-mina","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-mina","purl":"pkg:maven/org.apache.camel/camel-mina","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-mina","purl":"pkg:maven/org.apache.camel/camel-mina","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-netty","purl":"pkg:maven/org.apache.camel/camel-netty","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-netty","purl":"pkg:maven/org.apache.camel/camel-netty","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-netty","purl":"pkg:maven/org.apache.camel/camel-netty","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-netty-http","purl":"pkg:maven/org.apache.camel/camel-netty-http","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-netty-http","purl":"pkg:maven/org.apache.camel/camel-netty-http","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-netty-http","purl":"pkg:maven/org.apache.camel/camel-netty-http","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-vertx-http","purl":"pkg:maven/org.apache.camel/camel-vertx-http","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-vertx-http","purl":"pkg:maven/org.apache.camel/camel-vertx-http","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-vertx-http","purl":"pkg:maven/org.apache.camel/camel-vertx-http","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-infinispan","purl":"pkg:maven/org.apache.camel/camel-infinispan","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-infinispan","purl":"pkg:maven/org.apache.camel/camel-infinispan","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-infinispan","purl":"pkg:maven/org.apache.camel/camel-infinispan","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-leveldb","purl":"pkg:maven/org.apache.camel/camel-leveldb","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-leveldb","purl":"pkg:maven/org.apache.camel/camel-leveldb","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-leveldb","purl":"pkg:maven/org.apache.camel/camel-leveldb","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-cassandraql","purl":"pkg:maven/org.apache.camel/camel-cassandraql","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-cassandraql","purl":"pkg:maven/org.apache.camel/camel-cassandraql","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-cassandraql","purl":"pkg:maven/org.apache.camel/camel-cassandraql","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-consul","purl":"pkg:maven/org.apache.camel/camel-consul","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-consul","purl":"pkg:maven/org.apache.camel/camel-consul","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-consul","purl":"pkg:maven/org.apache.camel/camel-consul","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-sql","purl":"pkg:maven/org.apache.camel/camel-sql","ranges":[">=4.14.0 <4.14.8"],"fixed":["4.14.8"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-sql","purl":"pkg:maven/org.apache.camel/camel-sql","ranges":[">=4.18.0 <4.18.3"],"fixed":["4.18.3"]},{"ecosystem":"Maven","name":"org.apache.camel:camel-sql","purl":"pkg:maven/org.apache.camel/camel-sql","ranges":[">=4.19.0 <4.21.0"],"fixed":["4.21.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}