Apache Camel Missing Header Out Filter Leads to Potential Bypass/Injection Vulnerability
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.camel:camel-undertow | >= 4.10.0, < 4.10.3, >= 4.8.0, < 4.8.6 | 4.10.3, 4.8.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-30177
- https://github.com/apache/camel/commit/9fd8fc30dbd98511a1faa0cbcf39ef5aeec88a64
- https://camel.apache.org/security/CVE-2025-27636.html
- https://camel.apache.org/security/CVE-2025-29891.html
- https://github.com/apache/camel
- https://lists.apache.org/thread/dj79zdgw01j337lr9gvyy4sv8xfyw8py
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-164- Platform
- Java / Kotlin (Maven)
- Package
org.apache.camel:camel-undertow- Disclosed
- 01.04.2025
- Updated
- 11.10.2026 12:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vq4p-pchp-6g6v - CC BY 4.0
Vulnerability history: org.apache.camel:camel-undertow
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 04.2025 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- Medium 2
Disclosures per year
- 2025: 1
- 2026: 2
-
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