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VulnerabilityPublished Updated

CVE-2026-40860: Apache Camel · Deserialization of Untrusted Data

Affects Apache CamelSource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical · fixed in 4.20.0 : patch Apache Camel as a priority.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.7% chance of exploitation in 30 days – higher than 77% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.20.0, 4.18.2, 4.14.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade Apache to 4.20.0, 4.18.2 or 4.14.7.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache CamelAffected
  • >=4.19.0 <4.20.0
Fixed in
  • 4.20.0
Apache Software FoundationApache CamelAffected
  • >=4.15.0 <4.18.2
Fixed in
  • 4.18.2
Apache Software FoundationApache CamelAffected
  • >=3.0.0 <4.14.7
Fixed in
  • 4.14.7
MavenApache Software Foundation/org.apache.camel:camel-jmspkg:maven/Apache Software Foundation/org.apache.camel:camel-jmsOther threatsAffected
  • >=3.0.0 <4.14.7
  • >=4.15.0 <4.18.2
  • >=4.19.0 <4.20.0
Fixed in
  • 4.14.7
  • 4.18.2
  • 4.20.0
Mavenorg.apache.camel/camel-corepkg:maven/org.apache.camel/camel-coreOther threatsAffected
  • =3.0.0
  • =4.15.0
  • =4.19.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available. Users should upgrade to Apache Camel version 4.20.0 or later. For those on the 4.14.x LTS stream, upgrade to 4.14.7; for those on the 4.18.x stream, upgrade to 4.18.2. Red Hat provides patched builds addressing this vulnerability. Applying these updates will remediate the unsafe deserialization issue. No alternative mitigations are specified in the vendor advisory. Users should ensure that the mapJmsMessage option is carefully configured and consider disabling JMS ObjectMessage deserialization if upgrading is not immediately possible, although this is not explicitly stated in the advisory.

Description

JmsBinding.extractBodyFromJms() in camel-jms, and the equivalent JmsBinding class in camel-sjms, deserialized the payload of incoming JMS ObjectMessage values via javax.jms.ObjectMessage.getObject() without applying any ObjectInputFilter, class allowlist or class denylist. Because this code path is reached whenever the mapJmsMessage option is enabled (the default) and Camel acts as a JMS consumer, an attacker able to publish a crafted ObjectMessage to a queue or topic consumed by a Camel application could achieve remote code execution when a deserialization gadget chain was present on the classpath. The same handling was reached transitively through camel-sjms2 (whose Sjms2Endpoint extends SjmsEndpoint) and through camel-amqp (whose AMQPJmsBinding extends JmsBinding), and by other JMS-family components built on JmsComponent such as camel-activemq and camel-activemq6. This issue affects Apache Camel: from 3.0.0 before 4.14.7, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.7. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.

References

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