Input validation error in Apache Camel - CVE-2026-46584
Published: August 24, 2026
Vulnerability identifier: #VU144703
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-46584
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper input validation in the Camel Mail producer when processing attacker-controlled mail.smtp.* or mail.smtps.* message headers from untrusted input. A remote attacker can send crafted headers through an upstream protocol or message source to disclose sensitive information.
Exploitation requires a route that forwards untrusted input to an smtp or smtps producer without stripping the affected header namespace.
Affected software
Apache Camel
How to mitigate CVE-2026-46584
Install security update from vendor's website.
Apache Camel - addressed in versions 4.15.0, 4.19.0, 4.21.0