Apache Camel Undertow Header Injection (pre-4.10.3, pre-4.8.6)
CVE-2025-30177 Published on April 1, 2025
Apache Camel: Camel-Undertow Message Header Injection via Improper Filtering
Bypass/Injection vulnerability in Apache Camel in Camel-Undertow component under particular conditions.
This issue affects Apache Camel: from 4.10.0 before 4.10.3, from 4.8.0 before 4.8.6.
Users are recommended to upgrade to version 4.10.3 for 4.10.x LTS and 4.8.6 for 4.8.x LTS.
Camel undertow component is vulnerable to Camel message header injection, in particular the custom header filter strategy used by the component only filter the "out" direction, while it doesn't filter the "in" direction.
This allows an attacker to include Camel specific headers that for some Camel components can alter the behaviour such as the camel-bean component, or the camel-exec component.
Vulnerability Analysis
CVE-2025-30177 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Improper Neutralization of Internal Special Elements
The software receives input from an upstream component, but it does not neutralize or incorrectly neutralizes internal special elements that could be interpreted in unexpected ways when they are sent to a downstream component. As data is parsed, improperly handled internal special elements may cause the process to take unexpected actions that result in an attack.
Products Associated with CVE-2025-30177
stack.watch emails you whenever new vulnerabilities are published in Red Hat Undertow or Apache Camel. Just hit a watch button to start following.
Affected Versions
Apache Software Foundation Apache Camel:- Version 4.10.0 and below 4.10.3 is affected.
- Version 4.8.0 and below 4.8.6 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.