Input Validation Flaw in Apache Camel's Vertx Websocket Component Exposes Sensitive Data
CVE-2026-46726

7.5HIGH

Key Information:

Vendor

Apache
Status
Apache Camel Vertx Websocket
Vendor
CVE Published:
6 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-46726?

A vulnerability in the Vertx Websocket component of Apache Camel allows for improper input validation and exposes sensitive information to unauthorized actors. The issue arises when inbound WebSocket parameters are incorrectly mapped to the Camel Exchange header map without applying necessary header filtering. This misconfiguration permits attackers, through crafted WebSocket requests, to inject control headers that redirect server-side HTTP requests to unintended destinations, enabling Server-Side Request Forgery (SSRF). Additionally, sensitive data like environment variables and application properties may be resolved and exposed to the attacker. The vulnerability can be exploited by unauthenticated remote individuals if the WebSocket endpoint lacks authentication. It is recommended that users upgrade their systems to versions 4.21.0, 4.14.8, or 4.18.3 to mitigate the issue.

Affected Version(s)

Apache Camel Vertx Websocket 4.0.0 < 4.14.8

Apache Camel Vertx Websocket 4.15.0 < 4.18.3

Apache Camel Vertx Websocket 4.19.0 < 4.21.0

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.

CVE-2026-46726
Created by oscerd

References

https://camel.apache.org/security/CVE-2026-46726.html
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kamalpreet Singh
Andrea Cosentino
.