Remote Code Execution Vulnerability in Apache Camel's CoAP Component
CVE-2026-33453

10CRITICAL

Key Information:

Vendor

Apache
Status
Apache Camel
Vendor
CVE Published:
27 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-33453?

A vulnerability exists within Apache Camel's camel-coap component that allows an unauthenticated attacker to exploit message header injection. By sending a single CoAP UDP packet to a Camel route that accepts coap:// input, attackers can inject arbitrary Camel internal headers into the Exchange. This leads to unintended manipulation of producer behavior, potentially allowing an attacker to execute arbitrary OS commands. The exploitation requires minimal prerequisites and leverages the lack of built-in CoAP authentication, making it critical for users to upgrade to the secure versions promptly.

Affected Version(s)

Apache Camel 4.14.0 <= 4.14.5

Apache Camel 4.18.0 < 4.18.1

Apache Camel 4.19.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

apache-camel
Created by dinosn

References

https://camel.apache.org/security/CVE-2026-33453.html
vendor-advisory

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hyunwoo Kim (@v4bel)
.