Critical [CVE-2026-40453] Remote Code Execution and Arbitrary File Write via case-variant header injection
This critical-severity Red Hat Linux advisory covers CVE-2026-40453 affecting Red Hat Build of Apache Camel 4.14 for Quarkus 3.27, Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14, Red Hat build of Apache Camel 4 for Quarkus 3.
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Summary
Remote Code Execution and Arbitrary File Write via case-variant header injection. Red Hat rates this critical (CVSS 9.9).
Weakness: CWE-178. Affected package(s): camel-http-starter, camel-google-pubsub, camel-http-common, camel-jms, camel-http-base, camel-http.
Resolved in Red Hat advisory RHSA-2026:19835 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Build of Apache Camel 4.14 for Quarkus 3.27; Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14; Red Hat build of Apache Camel 4 for Quarkus 3.
- camel-http-starter
- camel-google-pubsub
- camel-http-common
- camel-jms
- camel-http-base
- camel-http
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:19835
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:19835 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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