Apache Camel, Apache Camel: Camel JMS - CVE-2026-40860 fix bypass via DefaultExchangeHolder
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-502.
Summary
Deserialization of Untrusted Data vulnerability in Apache Camel, Apache Camel JMS component. JmsBinding.extractBodyFromJms() in camel-jms - and the equivalent JmsBinding in camel-sjms - deserializes the payload of an incoming JMS ObjectMessage via jakarta.jms.ObjectMessage.getObject() whenever the mapJmsMessage option is enabled (the default) and Camel acts as a JMS consumer. The CVE-2026-40860 hardening added a post-deserialization class check that rejects classes outside the default allow-list java.**;javax.**;org.apache.camel.**;!*. However org.apache.camel.support.DefaultExchangeHolder itself lives in the allow-listed org.apache.camel.** namespace, so an ObjectMessage whose top-level object is a DefaultExchangeHolder passes the check. The receiving side then calls DefaultExchangeHolder.unmarshal() on it without requiring the transferExchange option to be enabled - an asymmetric trust boundary, since the sending side gates ObjectMessage and transferExchange handling but the receiving side did not - writing every non-null field of the holder into the Exchange: the message body, the IN and OUT headers, the exchange properties, the variables, the exchange id and the exception. An attacker who can publish an ObjectMessage to a queue or topic consumed by an affected Camel application can therefore inject arbitrary Exchange state using only universally-trusted java.lang and java.util types, with no deserialization gadget chain required, to manipulate routing and headers, exchange properties and error handling. The same handling applies to camel-sjms and camel-sjms2, and to the JMS-family components built on JmsComponent and JmsBinding: camel-amqp, camel-activemq and camel-activemq6. This is a bypass of the CVE-2026-40860 fix rather than a flaw in it. This issue affects Apache Camel: from 3.0.0 before 4.14.8, from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0; Apache Camel: from 3.0.0 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 version 4.21.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.8. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.3. After upgrading, JMS ObjectMessage handling is disabled by default in camel-jms, camel-sjms and the JMS-family components (a new objectMessageEnabled option defaults to false at the component and endpoint level), so an incoming ObjectMessage - including a DefaultExchangeHolder payload - is no longer deserialized unless the option is explicitly enabled; only set objectMessageEnabled=true when the consumed JMS destination is fed exclusively by trusted producers. For deployments that cannot upgrade immediately, restrict publish access to the queues and topics consumed by Camel to trusted producers via JMS broker authorization, and do not expose JMS consumers that map ObjectMessage bodies to untrusted networks; a JMS-provider deserialization allow-list does not mitigate this specific bypass because the crafted payload uses only universally-trusted classes.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Camel | 3.0.0 to before 4.14.8; 4.15.0 to before 4.18.3; 4.19.0 to before 4.21.0 | 4.14.8, 4.18.3, 4.21.0 | Patch available | CNA |
| Apache | Apache Camel | 3.0.0 to before 4.14.8; 4.15.0 to before 4.18.3; 4.19.0 to before 4.21.0 | 4.14.8, 4.18.3, 4.21.0 | Patch available | CNA |
| — | org.apache.camel:camel-jms (Maven) | 3.0.0 to before 4.14.8 | 4.14.8 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-jms (Maven) | 4.15.0 to before 4.18.3 | 4.18.3 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-jms (Maven) | 4.19.0 to before 4.21.0 | 4.21.0 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-sjms (Maven) | 3.0.0 to before 4.14.8 | 4.14.8 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-sjms (Maven) | 4.15.0 to before 4.18.3 | 4.18.3 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-sjms (Maven) | 4.19.0 to before 4.21.0 | 4.21.0 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-sjms2 (Maven) | 3.0.0 to before 4.14.8 | 4.14.8 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-sjms2 (Maven) | 4.15.0 to before 4.18.3 | 4.18.3 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-sjms2 (Maven) | 4.19.0 to before 4.21.0 | 4.21.0 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-amqp (Maven) | 3.0.0 to before 4.14.8 | 4.14.8 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-amqp (Maven) | 4.15.0 to before 4.18.3 | 4.18.3 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-amqp (Maven) | 4.19.0 to before 4.21.0 | 4.21.0 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-activemq (Maven) | 3.0.0 to before 4.14.8 | 4.14.8 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-activemq (Maven) | 4.15.0 to before 4.18.3 | 4.18.3 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-activemq (Maven) | 4.19.0 to before 4.21.0 | 4.21.0 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-activemq6 (Maven) | 3.0.0 to before 4.14.8 | 4.14.8 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-activemq6 (Maven) | 4.15.0 to before 4.18.3 | 4.18.3 | Patch available | GHSA-f755-xp6r-8q84 |
| — | org.apache.camel:camel-activemq6 (Maven) | 4.19.0 to before 4.21.0 | 4.21.0 | Patch available | GHSA-f755-xp6r-8q84 |
- Apache Camel VendorApache Affected 3.0.0 to before 4.14.8; 4.15.0 to before 4.18.3; 4.19.0 to before 4.21.0 Fixed in 4.14.8, 4.18.3, 4.21.0 Patch available CNA
- Apache Camel VendorApache Affected 3.0.0 to before 4.14.8; 4.15.0 to before 4.18.3; 4.19.0 to before 4.21.0 Fixed in 4.14.8, 4.18.3, 4.21.0 Patch available CNA
- org.apache.camel:camel-jms (Maven) Vendor— Affected 3.0.0 to before 4.14.8 Fixed in 4.14.8 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-jms (Maven) Vendor— Affected 4.15.0 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-jms (Maven) Vendor— Affected 4.19.0 to before 4.21.0 Fixed in 4.21.0 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-sjms (Maven) Vendor— Affected 3.0.0 to before 4.14.8 Fixed in 4.14.8 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-sjms (Maven) Vendor— Affected 4.15.0 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-sjms (Maven) Vendor— Affected 4.19.0 to before 4.21.0 Fixed in 4.21.0 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-sjms2 (Maven) Vendor— Affected 3.0.0 to before 4.14.8 Fixed in 4.14.8 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-sjms2 (Maven) Vendor— Affected 4.15.0 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-sjms2 (Maven) Vendor— Affected 4.19.0 to before 4.21.0 Fixed in 4.21.0 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-amqp (Maven) Vendor— Affected 3.0.0 to before 4.14.8 Fixed in 4.14.8 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-amqp (Maven) Vendor— Affected 4.15.0 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-amqp (Maven) Vendor— Affected 4.19.0 to before 4.21.0 Fixed in 4.21.0 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-activemq (Maven) Vendor— Affected 3.0.0 to before 4.14.8 Fixed in 4.14.8 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-activemq (Maven) Vendor— Affected 4.15.0 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-activemq (Maven) Vendor— Affected 4.19.0 to before 4.21.0 Fixed in 4.21.0 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-activemq6 (Maven) Vendor— Affected 3.0.0 to before 4.14.8 Fixed in 4.14.8 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-activemq6 (Maven) Vendor— Affected 4.15.0 to before 4.18.3 Fixed in 4.18.3 Patch available GHSA-f755-xp6r-8q84
- org.apache.camel:camel-activemq6 (Maven) Vendor— Affected 4.19.0 to before 4.21.0 Fixed in 4.21.0 Patch available GHSA-f755-xp6r-8q84
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* | 3.0.0 to before 4.14.8; 4.15.0 to before 4.18.3; 4.19.0 to before 4.21.0 | Vulnerable | Apache |
- cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:* Versions 3.0.0 to before 4.14.8; 4.15.0 to before 4.18.3; 4.19.0 to before 4.21.0 Vulnerable ·Apache
Remediation
- Fix · CNA Apache Camel (Apache Software Foundation) Fixed in 4.14.8, 4.18.3, 4.21.0
- Fix · CNA Apache Camel (Apache Software Foundation) Fixed in 4.14.8, 4.18.3, 4.21.0
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-jms (Maven) Fixed in 4.14.8 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-jms (Maven) Fixed in 4.18.3 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-jms (Maven) Fixed in 4.21.0 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-sjms (Maven) Fixed in 4.14.8 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-sjms (Maven) Fixed in 4.18.3 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-sjms (Maven) Fixed in 4.21.0 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-sjms2 (Maven) Fixed in 4.14.8 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-sjms2 (Maven) Fixed in 4.18.3 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-sjms2 (Maven) Fixed in 4.21.0 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-amqp (Maven) Fixed in 4.14.8 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-amqp (Maven) Fixed in 4.18.3 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-amqp (Maven) Fixed in 4.21.0 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-activemq (Maven) Fixed in 4.14.8 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-activemq (Maven) Fixed in 4.18.3 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-activemq (Maven) Fixed in 4.21.0 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-activemq6 (Maven) Fixed in 4.14.8 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-activemq6 (Maven) Fixed in 4.18.3 Advisory →
- Fix · GHSA-f755-xp6r-8q84 org.apache.camel:camel-activemq6 (Maven) Fixed in 4.21.0 Advisory →
Red Hat 1 advisory
- RHSA-2026:54622 Released 2026-08-13 · Red Hat rating ImportantRed Hat Build of Apache Camel 4.18.3 for Spring Boot release.
- Red Hat build of Apache Camel 4.18.3 for Spring Boot 3.5.16
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache Camel 4.14.8, 4.18.3, 4.21.0
14 records Highest priority Priority MEDIUM 7 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2026-35614 Improper input validation in Apache CamelPriority MEDIUM 50
- TI-2026-34159 Improper input validation in Apache CamelPriority MEDIUM 50
- TI-2026-34157 Improper input validation in Apache CamelPriority MEDIUM 50
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat build of Apache Camel 4.18.3 for Spring Boot 3.5.16 | Fixed | RHSA-2026:54622 |
Not affected: 1 product
- Red Hat build of Apache Camel 4 for Quarkus 3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-43866
- 2026-10-03 Alias added: GHSA-f755-xp6r-8q84
- 2026-10-14 EPSS moved to the 50th–90th percentile
References
Advisory 2
Other 18
- https://github.com/apache/camel/pull/22970
- https://github.com/apache/camel/pull/22968
- https://github.com/apache/camel/pull/22945
- https://github.com/apache/camel/pull/22920
- https://github.com/apache/camel/pull/22918
- https://github.com/apache/camel/pull/22866
- https://github.com/apache/camel/commit/844bbf8c894c5e2bfa023579db80dcd3354c0e1b
- https://github.com/apache/camel/commit/81449eb6ef3edf856c84117ce708beb2ada8f650
- https://github.com/apache/camel/commit/75d7991b89265a2e8e62c7207165deb88c3a6ef3
- https://github.com/apache/camel/commit/6cb29c0bbd7d1c46f057eac46c4afa62c9f5e00f
- https://github.com/apache/camel/commit/17f8fcb22569f4c459b9e53c1485bfc764dc0015
- https://github.com/apache/camel/commit/01ead5e8473a2b2fca4902c0236978805b990c31
- https://github.com/apache/camel
- https://github.com/apache/camel/releases/tag/camel-4.14.8
- https://github.com/apache/camel/releases/tag/camel-4.18.3
- https://github.com/apache/camel/releases/tag/camel-4.21.0
- https://issues.apache.org/jira/browse/CAMEL-23373
- https://issues.apache.org/jira/browse/CAMEL-23409
More Apache Camel vulnerabilities
- TI-2026-76322 Unsafe deserialization in Apache Camel camel-hazelcast CVSS 4.0CRITICAL 10.0
- TI-2026-18973 Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy CVSS 3.1CRITICAL 9.1
- TI-2026-76339 Path traversal in Apache Camel azure-files component CVSS 3.1CRITICAL 9.1
- TI-2026-76330 Path traversal in Apache Camel FTP consumer escapes polled directory CVSS 3.1CRITICAL 9.1
- TI-2025-20435 Apache Camel: Camel Message Header Injection via Improper Filtering CVSS 3.1MEDIUM 5.6
- TI-2026-34899 Apache Camel: Camel-CXF Message Header Injection via Missing Inbound Filtering CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-43866 · CVE Program
- CVE-2026-43866 · NVD
- FIRST EPSS
- GHSA-f755-xp6r-8q84 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-43866 · Red Hat security data · CC BY 4.0
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