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Vendor Workaround
See https://github.com/netty/netty/security/advisories/GHSA-3jrc-fchc-59pw for fixed versions and remediation guidance.
Tracking
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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 | Netty split Transfer-Encoding fields bypass final-chunked validation and enable request smuggling | A flaw was found in Netty's HTTP/1.1 decoder. This vulnerability allows a remote attacker to bypass `Transfer-Encoding` header validation by splitting the `Transfer-Encoding` field across multiple headers, with the last field containing a non-final transfer coding like `gzip` or `deflate`. This bypass can lead to HTTP request smuggling, enabling attackers to bypass security controls, desynchronize request processing, or cause requests to be processed in an unintended context. |
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ssvc
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Fri, 18 Sep 2026 15:00:00 +0000
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| Description | Netty split Transfer-Encoding fields bypass final-chunked validation and enable request smuggling | |
| Title | Io.netty/netty-codec-http: netty split transfer-encoding fields bypass final-chunked validation and enable request smuggling | |
| First Time appeared |
Redhat
Redhat amq Broker Redhat amq Clients 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-444 | |
| CPEs | cpe:/a:redhat:amq_broker:7 cpe:/a:redhat:amq_clients:2023 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 amq Clients 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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cvssV3_1
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Subscriptions
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-18T20:12:21.949Z
Reserved: 2026-09-18T10:30:24.299Z
Link: CVE-2026-93573
Updated: 2026-09-18T16:20:01.227Z
Status : Awaiting Analysis
Published: 2026-09-18T15:17:21.020
Modified: 2026-09-18T21:18:48.140
Link: CVE-2026-93573
OpenCVE Enrichment
Updated: 2026-09-18T23:15:17Z