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Solution
No solution given by the vendor.
Workaround
See https://github.com/netty/netty/security/advisories/GHSA-45h4-vhwh-fmhg for fixed versions and remediation guidance.
Sat, 19 Sep 2026 00:15:00 +0000
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threat_severity
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threat_severity
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Fri, 18 Sep 2026 21:30:00 +0000
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| Description | HTTP/1 authority-form CONNECT is translated to malformed HTTP/2 CONNECT with Host-controlled :authority | A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leading to a malformed HTTP/2 CONNECT request. This can bypass security controls such as tunnel allow-lists or egress policies, resulting in integrity loss. |
Fri, 18 Sep 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | HTTP/1 authority-form CONNECT is translated to malformed HTTP/2 CONNECT with Host-controlled :authority | |
| Title | Io.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authority | |
| First Time appeared |
Redhat
Redhat amq Broker Redhat apicurio Registry Redhat build Keycloak Redhat camel Quarkus Redhat camel Spring Boot Redhat debezium Redhat jboss Data Grid Redhat jboss Enterprise Application Platform Redhat jboss Fuse Redhat quarkus Redhat red Hat Single Sign On |
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| Weaknesses | CWE-20 | |
| CPEs | cpe:/a:redhat:amq_broker:7 cpe:/a:redhat:apicurio_registry:3 cpe:/a:redhat:build_keycloak: cpe:/a:redhat:camel_quarkus:3 cpe:/a:redhat:camel_spring_boot:4 cpe:/a:redhat:debezium:3 cpe:/a:redhat:jboss_data_grid:8 cpe:/a:redhat:jboss_enterprise_application_platform:7 cpe:/a:redhat:jboss_enterprise_application_platform:8 cpe:/a:redhat:jboss_fuse:7 cpe:/a:redhat:quarkus:3 cpe:/a:redhat:red_hat_single_sign_on:7 |
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| Vendors & Products |
Redhat
Redhat amq Broker Redhat apicurio Registry Redhat build Keycloak Redhat camel Quarkus Redhat camel Spring Boot Redhat debezium Redhat jboss Data Grid Redhat jboss Enterprise Application Platform Redhat jboss Fuse Redhat quarkus Redhat red Hat Single Sign On |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-18T20:11:55.806Z
Reserved: 2026-09-18T10:02:05.097Z
Link: CVE-2026-93567
No data.
Status : Awaiting Analysis
Published: 2026-09-18T15:17:20.450
Modified: 2026-09-18T21:18:47.637
Link: CVE-2026-93567
OpenCVE Enrichment
Updated: 2026-09-18T23:15:17Z