Input validation error in Apache Camel - CVE-2026-59230
Published: August 25, 2026
Vulnerability identifier: #VU145143
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59230
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to influence downstream route behavior.
The vulnerability exists due to improper input validation in the MimeMultipart data format unmarshal path when unmarshalling a MIME multipart message with headersInline enabled. A remote attacker can supply a crafted MIME header name to influence downstream route behavior.
Only configurations with headersInline enabled are vulnerable; with the default setting, MIME headers are surfaced as attachments instead of message headers.
Affected software
Apache Camel
How to mitigate CVE-2026-59230
Install security update from vendor's website.
Apache Camel - addressed in versions 4.14.9, 4.18.4, 4.22.0