# CVE-2025-29891: Apache Camel: Camel Message Header Injection through request parameters

- Exploited (CISA KEV): no
- Published: 2025-03-12
- CVSS: 4.8 MEDIUM (v3.1)
- EPSS: 76.1% (100th percentile)
- CWE: CWE-164

Bypass/Injection vulnerability in Apache Camel.

This issue affects Apache Camel: from 4.10.0 before 4.10.2, from 4.8.0 before 4.8.5, from 3.10.0 before 3.22.4.

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, or the camel-exec component.

If you have Camel applications that are directly connected to the internet via HTTP, then an attacker could include parameters in the HTTP requests that are sent to the Camel application that get translated into headers. 

The headers could be both provided as request parameters for an HTTP methods invocation or as part of the payload of the HTTP methods invocation.

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.

This CVE is related to the CVE-2025-27636: while they have the same root cause and are fixed with the same fix, CVE-2025-27636 was assumed to only be exploitable if an attacker could add malicious HTTP headers, while we have now determined that it is also exploitable via HTTP parameters. Like in CVE-2025-27636, exploitation is only possible if the Camel route uses particular vulnerable components.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Rule off by default | 2025-04-02 | 21 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-04-02 · new · rule a9ec9cf625ff42769298671d1bbcd247 · default Disabled
  > Apache Camel - Remote Code Execution - CVE:CVE-2025-29891. Previous action: Log. New action: Disabled. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-04-02-waf-release/
- 2025-04-02 · new · rule ccc47ab7e34248c09546c284fcea5ed2 · default Disabled
  > Apache Camel - Remote Code Execution - CVE:CVE-2025-29891. Previous action: N/A. New action: Disabled. N/A
  Source: https://developers.cloudflare.com/changelog/post/2025-04-02-waf-release/

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-29891 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-29891