Bypass/Injection vulnerability in Apache Camel components under particular conditions. This issue affects Apache Camel: from 4.10.0 through <= 4.10.1, from 4.8.0 through <= 4.8.4, from 3.10.0 through <= 3.22.3. Users are recommended to upgrade to version 4.10.2 for 4.10.x LTS, 4.8.5 for 4.8.x LTS and 3.22.4 for 3.x releases. This vulnerability is present in Camel's default incoming header filter, that allows an attacker to include Camel specific headers that for some Camel components can alter the behaviours such as the camel-bean component, to call another method on the bean, than was coded in the application. In the camel-jms component, then a malicious header can be used to send the message to another queue (on the same broker) than was coded in the application. This could also be seen by using the camel-exec component The attacker would need to inject custom headers, such as HTTP protocols. So if you have Camel applications that are directly connected to the internet via HTTP, then an attacker could include malicious HTTP headers in the HTTP requests that are send to the Camel application. All the known Camel HTTP component such as camel-servlet, camel-jetty, camel-undertow, camel-platform-http, and camel-netty-http would be vulnerable out of the box. In these conditions an attacker could be able to forge a Camel header name and make the bean component invoking other methods in the same bean. In terms of usage of the default header filter strategy the list of components using that is: * camel-activemq * camel-activemq6 * camel-amqp * camel-aws2-sqs * camel-azure-servicebus * camel-cxf-rest * camel-cxf-soap * camel-http * camel-jetty * camel-jms * camel-kafka * camel-knative * camel-mail * camel-nats * camel-netty-http * camel-platform-http * camel-rest * camel-sjms * camel-spring-rabbitmq * camel-stomp * camel-tahu * camel-undertow * camel-xmpp The vulnerability arises due to a bug in the default filtering mechanism that only blocks headers starting with "Camel", "camel", or "org.apache.camel.". Mitigation: You can easily work around this in your Camel applications by removing the headers in your Camel routes. There are many ways of doing this, also globally or per route. This means you could use the removeHeaders EIP, to filter out anything like "cAmel, cAMEL" etc, or in general everything not starting with "Camel", "camel" or "org.apache.camel.".

The version of Apache Camel on the remote host is 3.10.0 prior to 3.22.4, 4.8.x prior to 4.8.5, or 4.10.x prior to 4.10.2. It is, therefore, affected by a message header injection vulnerability:

  - Bypass/Injection vulnerability in Apache Camel components under particular conditions. This issue affects Apache     Camel: from 4.10.0 through <= 4.10.1, from 4.8.0 through <= 4.8.4, from 3.10.0 through <= 3.22.3. Users are     recommended to upgrade to version 4.10.2 for 4.10.x LTS, 4.8.5 for 4.8.x LTS and 3.22.4 for 3.x releases. This     vulnerability is present in Camel's default incoming header filter, that allows an attacker to include Camel     specific headers that for some Camel components can alter the behaviours such as the camel-bean component, to call     another method on the bean, than was coded in the application. (CVE-2025-27636)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Bypass/Injection vulnerability in Apache Camel components under particular conditions. This issue affects
    Apache Camel: from 4.10.0 through <= 4.10.1, from 4.8.0 through <= 4.8.4, from 3.10.0 through <= 3.22.3.
    Users are recommended to upgrade to version 4.10.2 for 4.10.x LTS, 4.8.5 for 4.8.x LTS and 3.22.4 for 3.x
    releases. This vulnerability is present in Camel's default incoming header filter, that allows an attacker
    to include Camel specific headers that for some Camel components can alter the behaviours such as the
    camel-bean component, to call another method on the bean, than was coded in the application. In the camel-
    jms component, then a malicious header can be used to send the message to another queue (on the same
    broker) than was coded in the application. This could also be seen by using the camel-exec component The
    attacker would need to inject custom headers, such as HTTP protocols. So if you have Camel applications
    that are directly connected to the internet via HTTP, then an attacker could include malicious HTTP
    headers in the HTTP requests that are send to the Camel application. All the known Camel HTTP component
    such as camel-servlet, camel-jetty, camel-undertow, camel-platform-http, and camel-netty-http would be
    vulnerable out of the box. In these conditions an attacker could be able to forge a Camel header name and
    make the bean component invoking other methods in the same bean. In terms of usage of the default header
    filter strategy the list of components using that is: * camel-activemq * camel-activemq6 * camel-amqp *
    camel-aws2-sqs * camel-azure-servicebus * camel-cxf-rest * camel-cxf-soap * camel-http * camel-jetty *
    camel-jms * camel-kafka * camel-knative * camel-mail * camel-nats * camel-netty-http * camel-platform-http
    * camel-rest * camel-sjms * camel-spring-rabbitmq * camel-stomp * camel-tahu * camel-undertow * camel-xmpp
    The vulnerability arises due to a bug in the default filtering mechanism that only blocks headers starting
    with "Camel", "camel", or "org.apache.camel.". Mitigation: You can easily work around this in your Camel
    applications by removing the headers in your Camel routes. There are many ways of doing this, also
    globally or per route. This means you could use the removeHeaders EIP, to filter out anything like "cAmel,
    cAMEL" etc, or in general everything not starting with "Camel", "camel" or "org.apache.camel.".
    (CVE-2025-27636)

ID	Name	Product	Family	Severity
232840	Apache Camel 3.10.0 < 3.22.4 / 4.8.x < 4.8.5 / 4.10.x < 4.10.2 Message Header Injection (CVE-2025-27636)	Nessus	Misc.	medium
421082	SCA: security update for org.apache.camel:camel-support (GHSA-2c2h-2855-mf97)	Tenable Cloud Security	SCA Checks	medium
421082	SCA: security update for org.apache.camel:camel-support (GHSA-2c2h-2855-mf97)	Tenable Self-Hosted Container Security	SCA Checks	medium

Detections

Analytics

CVE-2025-27636

medium

Tenable Plugins

medium

medium

medium