CVE-2026-84180
Received Received - Intake

Information Disclosure in Apache Camel Knative

Publication date: 2026-10-19

Last updated on: 2026-10-19

Assigner: Apache Software Foundation

Description
Generation of Error Message Containing Sensitive Information vulnerability in Apache Camel Knative component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. When processing of an exchange failed on the consumer side, the Knative HTTP consumer wrote the resulting exception back to the remote caller as the response body, including its class name, message and stack trace. An external sender could therefore provoke a failure and read internal detail about the deployment: class and package names, file system or host names carried in exception messages, and the shape of the route. That detail is useful for building a more targeted attack, and where an exception message embeds configuration or connection strings it is disclosure in its own right. camel-knative was the remaining HTTP-family consumer that had not been aligned with the muteException behaviour established for the other HTTP consumers by CAMEL-23651. Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases stream should upgrade to 4.22.1. The consumer now honours a muteException option that defaults to true, so a route failure returns an empty body with the error status rather than the exception. Set muteException=false to restore the previous output. For deployments that cannot upgrade immediately, add an onException handler that sets the response body explicitly, so that the framework never writes the exception back to the caller.

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Meta Information

Published
2026-10-19
Last Modified
2026-10-19
Generated
2026-10-19
AI Q&A
2026-10-19
EPSS Evaluated
N/A
NVD
CVE-2026-84180
EUVD
EUVD-2026-104183

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
Apache Software Foundation Apache Camel 4.0.0
Apache Software Foundation Apache Camel 4.19.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-209 The product generates an error message that includes sensitive information about its environment, users, or associated data.

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Executive Summary

This vulnerability in Apache Camel's Knative component allows an attacker to trigger an error in the system and receive detailed internal information in the response. This includes class names, file paths, hostnames, and stack traces, which could help in planning further attacks or expose sensitive configuration details.

Detection Guidance

Check Apache Camel version with command: mvn dependency:tree | grep camel-knative. If version is between 4.0.0-4.18.4, 4.19.0-4.22.0, or 4.23.0, it is vulnerable. Inspect HTTP responses for exchange failures containing exception details like class names, stack traces, or file paths.

Impact Analysis

An attacker could exploit this to gather internal system details, potentially aiding in crafting targeted attacks. If error messages contain sensitive data like configuration or connection strings, this could lead to direct information disclosure or further compromise of the system.

Mitigation Strategies

Upgrade Apache Camel to version 4.23.0, 4.18.5, or 4.22.1. If immediate upgrade is not possible, set muteException=false to restore previous behavior or add an onException handler to explicitly control response body and prevent sensitive information disclosure.

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