Input validation error in Apache Camel - CVE-2026-48205
Published: August 24, 2026
Vulnerability identifier: #VU144695
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-48205
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to redirect DNS queries to an attacker-controlled server and disclose sensitive information about internal hostnames.
The vulnerability exists due to improper input validation in the Camel-DNS producer header handling when processing HTTP requests bridged into a dns: producer. A remote attacker can send a specially crafted request with dns.* or term headers to redirect DNS queries to an attacker-controlled server and disclose sensitive information about internal hostnames.
In affected routes, the HTTP header filter does not block these non-Camel-prefixed header names at the HTTP boundary.
Affected software
Apache Camel
How to mitigate CVE-2026-48205
Install security update from vendor's website.
Apache Camel - addressed in versions 4.15.0, 4.19.0, 4.21.0