Input validation error in Apache Camel - CVE-2026-33454
Published: August 25, 2026
Vulnerability identifier: #VU145335
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33454
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper input validation in MailHeaderFilterStrategy when consuming mail messages through camel-mail. A remote attacker can send an email with crafted Camel-prefixed MIME headers to alter downstream route behavior and execute arbitrary code.
Exploitation requires the application to consume email from a monitored mailbox and use downstream components that act on injected Camel headers, such as camel-bean, camel-exec, or camel-sql.
Affected software
Apache Camel
Red Hat Camel for Spring Boot
Red Hat Camel for Spring Boot
How to mitigate CVE-2026-33454
Install security update from vendor's website.
Apache Camel - addressed in versions 4.14.6, 4.18.1, 4.19.0
Red Hat Camel for Spring Boot - update to 4.14
Red Hat Camel for Spring Boot - update to 4.14