Improper Input Validation and SSRF in Apache Camel's Atmosphere Websocket Component
CVE-2026-55993

7.5HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-55993?

A vulnerability in the Atmosphere Websocket Component of Apache Camel allows attackers to exploit improper input validation in inbound WebSocket queries. The absence of a HeaderFilterStrategy enables clients to inject control headers into the Camel Exchange. This results in potential server-side request forgery (SSRF) by redirecting HTTP requests to attacker-specified destinations. Furthermore, the HTTP producer processes Camel property placeholders on these tainted URIs, leading to the unauthorized disclosure of sensitive data, such as environment variables and application secrets. This vulnerability particularly impacts deployments with exposed WebSocket endpoints lacking authentication, making them targets for unauthorized actors.

Affected Version(s)

Apache Camel Atmosphere Websocket 4.0.0 < 4.14.8

Apache Camel Atmosphere Websocket 4.15.0 < 4.18.3

Apache Camel Atmosphere 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-2026-55993
Created by oscerd

References

https://camel.apache.org/security/CVE-2026-55993.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
.