CVE-2026-93569
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Io.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authority
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Build of Apache Camel 3.33.3.SP2
- Vendor
- Red Hat
- Product
- Red Hat Build of Apache Camel 3.33.3.SP2
- Platforms
- Unknown
- Default status
affected- Package
- io.netty/netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.1.138.Final-redhat-00001 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Build of Debezium 3.6
- Vendor
- Red Hat
- Product
- Red Hat Build of Debezium 3.6
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Quarkus 3.27.5.SP2
- Vendor
- Red Hat
- Product
- Red Hat build of Quarkus 3.27.5.SP2
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat build of Quarkus 3.33.3.SP2
- Vendor
- Red Hat
- Product
- Red Hat build of Quarkus 3.33.3.SP2
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat AMQ Broker 7
- Vendor
- Red Hat
- Product
- Red Hat AMQ Broker 7
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Apache Camel 4 for Quarkus 3
- Vendor
- Red Hat
- Product
- Red Hat build of Apache Camel 4 for Quarkus 3
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Apache Camel for Spring Boot 4
- Vendor
- Red Hat
- Product
- Red Hat build of Apache Camel for Spring Boot 4
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Apicurio Registry 3
- Vendor
- Red Hat
- Product
- Red Hat build of Apicurio Registry 3
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Build of Keycloak
- Vendor
- Red Hat
- Product
- Red Hat Build of Keycloak
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Data Grid 8
- Vendor
- Red Hat
- Product
- Red Hat Data Grid 8
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Fuse 7
- Vendor
- Red Hat
- Product
- Red Hat Fuse 7
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat JBoss Enterprise Application Platform 7
- Vendor
- Red Hat
- Product
- Red Hat JBoss Enterprise Application Platform 7
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat JBoss Enterprise Application Platform 8
- Vendor
- Red Hat
- Product
- Red Hat JBoss Enterprise Application Platform 8
- Platforms
- Unknown
- Default status
unaffected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat JBoss Enterprise Application Platform Expansion Pack
- Vendor
- Red Hat
- Product
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html
No explicit version tuples; consult this entry's default status.
Red Hat Single Sign-On 7
- Vendor
- Red Hat
- Product
- Red Hat Single Sign-On 7
- Platforms
- Unknown
- Default status
affected- Package
- netty-codec-http2
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.