[ CVE-2026-91920 · Published 30 Oct 2026 ]
Vulnerability in Red Hat build of Apache Camel for Spring Boot 4
CVSS 6.5
EPSS <1%No fix listed yet
[ Description ]Official description
A flaw was found in the ChunkReader component of the Undertow web server, which is used to handle chunked transfer encoding in HTTP requests. The issue occurs because a security check for the chunk size is performed before the value is shifted, allowing a specifically crafted 15-digit chunk size to bypass the limit and overflow into internal state flags. This can cause the server to terminate a request body prematurely and interpret the remaining data as a separate, smuggled request.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.