CVE-2026-93569
Description
A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, Netty incorrectly prioritizes the Host header for the HTTP/2 :authority field, discarding the original request-target authority. This inconsistency can allow an attacker to bypass security controls in Netty-based proxies or gateways, potentially leading to unauthorized access, cache poisoning, or misrouting of requests.
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Build of Apache Camel 3.33.3.SP2 | No range specified | — |
| Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 | No range specified | — |
| Red Hat Red Hat build of Apache Camel for Spring Boot 4 | No range specified | — |
| Red Hat Red Hat build of Apicurio Registry 3 | No range specified | — |
| Red Hat Red Hat Build of Keycloak | No range specified | — |
| Red Hat Red Hat Data Grid 8 | No range specified | — |
| Red Hat Red Hat Fuse 7 | No range specified | — |
| Red Hat Red Hat JBoss Enterprise Application Platform 7 | No range specified | — |
| Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack | No range specified | — |
| Red Hat Red Hat Single Sign-On 7 | No range specified | — |
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