Input validation error in Apache Camel - CVE-2026-55993
Published: August 24, 2026
Vulnerability identifier: #VU144686
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-55993
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform server-side request forgery and disclose sensitive information.
The vulnerability exists due to improper input validation in the Camel-Atmosphere-Websocket inbound consumer when processing externally supplied WebSocket query parameters. A remote attacker can supply crafted query parameters that inject Camel control headers to perform server-side request forgery and disclose sensitive information.
Exploitation requires a route where the WebSocket consumer feeds a downstream HTTP producer, and property placeholders in the attacker-controlled URI may be resolved and sent to the attacker.
Affected software
Apache Camel
How to mitigate CVE-2026-55993
Install security update from vendor's website.
Apache Camel - addressed in versions 4.15.0, 4.19.0, 4.21.0