#VU106090 Improper Neutralization of HTTP Headers for Scripting Syntax in Apache Camel - CVE-2025-29891

Vulnerability identifier: #VU106090

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-29891

CWE-ID: CWE-644

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Camel
Server applications / Frameworks for developing and running applications

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to improper input validation when processing HTTP requests. A remote non-authenticated attacker can send a specially crafted HTTP request with an arbitrary Host header that will be accepted by the application.

Successful exploitation of the vulnerability may allow an attacker to perform cross-site scripting, cache poisoning or session hijacking attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Camel: 3.0.0 - 3.0.1, 3.1.0 - 3.19.0, 3.2.0 - 3.22.3, 3.3.0, 3.4.0 - 3.4.6, 3.5.0, 3.6.0, 3.7.0 - 3.7.7, 3.8.0, 3.9.0, 4.0.0-M1 - 4.0.6, 4.1.0, 4.2.0, 4.3.0, 4.4.0 - 4.4.5, 4.5.0, 4.6.0, 4.7.0, 4.8.0 - 4.8.4, 4.9.0, 4.10.0 - 4.10.1

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External links
https://camel.apache.org/security/CVE-2025-29891.html
https://github.com/akamai/CVE-2025-27636-Apache-Camel-PoC
https://lists.apache.org/thread/808z2fwsn6z3gqhdos5s8z1rj432rgqq

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.