Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-93569
Red Hat Red Hat Build of Apache Camel 3.33.3.SP2 — Io.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authority
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U L H N 8.2 .0219 82.1 —
AFFECTED
Product Versions Fixed
Red Hat Build of Apache Camel 3.33.3.SP2 unspecified 4.1.138.Final-redhat-00001
Red Hat Build of Debezium 3.6 unspecified —
Red Hat build of Quarkus 3.27.5.SP2 unspecified —
Red Hat build of Quarkus 3.33.3.SP2 unspecified —
Red Hat AMQ Broker 7 unspecified —
Red Hat build of Apache Camel 4 for Quarkus 3 unspecified —
Red Hat build of Apache Camel for Spring Boot 4 unspecified —
Red Hat build of Apicurio Registry 3 unspecified —
Red Hat Build of Keycloak unspecified —
Red Hat Data Grid 8 unspecified —
+ 5 more
TIMELINE
Sep 18 Reserved by redhat
Sep 18 Published (CNA: redhat)
Oct 9 PATCH SHIPPED — CVE-2026-93569 (Red Hat Build of Apache Camel 3.33.3.SP2). Fixed in Red Hat Build of Apache Camel 3.33.3.SP2 4.1.138.Final-redhat-00001.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 18, 2026 | Reserved | Reserved by redhat |
| September 18, 2026 | Published | Published (CNA: redhat) |
| October 9, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-93569 (Red Hat Build of Apache Camel 3.33.3.SP2). Fixed in Red Hat Build of Apache Camel 3.33.3.SP2 4.1.138.Final-redhat-00001. |
Affected
Affected products and packages — 15 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Build of Apache Camel 3.33.3.SP2 | — | — | 4.1.138.Final-redhat-00001 |
| Red Hat | Red Hat Build of Debezium 3.6 | — | — | — |
| Red Hat | Red Hat build of Quarkus 3.27.5.SP2 | — | — | — |
| Red Hat | Red Hat build of Quarkus 3.33.3.SP2 | — | — | — |
| Red Hat | Red Hat AMQ Broker 7 | — | — | — |
| Red Hat | Red Hat build of Apache Camel 4 for Quarkus 3 | — | — | — |
| Red Hat | Red Hat build of Apache Camel for Spring Boot 4 | — | — | — |
| Red Hat | Red Hat build of Apicurio Registry 3 | — | — | — |
| Red Hat | Red Hat Build of Keycloak | — | — | — |
| Red Hat | Red Hat Data Grid 8 | — | — | — |
| Red Hat | Red Hat Fuse 7 | — | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | — | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | — | — | — |
| Red Hat | Red Hat Single Sign-On 7 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-93569 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
