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Fencer Vulns
high 8.1

CVE-2026-42527 json

Apache Camel: Permissive default ObjectInputFilter pattern admits java.net.** and enables DNS-based information disclosure

published 2026-07-06 4 mo ago modified 2026-10-25 14 d ago also GHSA-8h6p-jvhf-9hcr , EUVD-2026-41825

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Deserialization of Untrusted Data vulnerability in Apache Camel.

The 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). This 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.

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 '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.**).

Patch / fix

  • maven org.apache.camel:camel-jms 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-sjms 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-amqp 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-mina 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-netty 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-netty-http 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-vertx-http 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-infinispan 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-leveldb 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-cassandraql 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-consul 4.14.8, 4.18.3, 4.21.0
  • maven org.apache.camel:camel-sql 4.14.8, 4.18.3, 4.21.0
  • Apache Software Foundation Apache Camel 4.14.8, 4.18.3, 4.21.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-42527 updated cvss 5.3

camel-jms: camel-sjms: camel-amqp: camel-mina: camel-netty: camel-netty-http: camel-vertx-http: camel-infinispan: camel-leveldb: camel-cassandraql: camel-consul: camel-sql: Apache Camel: Information d

  • Red Hat build of Apache Camel 4.18.4 for Spring Boot 3.5.16
    fixed: vendor fix RHSA-2026:71675
  • Red Hat build of Apache Camel 4 for Quarkus 3 camel-jms 4.18.1.redhat-00026, camel-sql 4.18.1.redhat-00026, camel-amqp 4.18.1.redhat-00026, camel-netty 4.18.1.redhat-00026, camel-infinispan 4.18.1.redhat-00026, camel-netty-http 4.18.1.redhat-00026, +2 more
    not affected: inline mitigations already exist
  • Red Hat JBoss Enterprise Application Platform Expansion Pack camel-jms 4.18.1.redhat-00026, camel-sql 4.18.1.redhat-00026, camel-amqp 4.18.1.redhat-00026, camel-netty 4.18.1.redhat-00026, camel-infinispan 4.18.1.redhat-00026, camel-netty-http 4.18.1.redhat-00026, +2 more
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.camel:camel-jms
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-sjms
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-amqp
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-mina
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-netty
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-netty-http
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-vertx-http
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-infinispan
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-leveldb
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-cassandraql
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-consul
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0
maven org.apache.camel:camel-sql
>=4.14.0, <4.14.8
>=4.18.0, <4.18.3
>=4.19.0, <4.21.0
4.14.8
4.18.3
4.21.0

Affected products

  • Apache Software Foundation Apache Camel

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.