CVE-2026-93574Io.netty/netty-codec-http: netty: http request smuggling via post-digit whitespace in chunk-size parsing
Updated under an hour ago ()
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It affects Red Hat Build of Debezium 3.6 and 11 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A flaw was found in Netty's `netty-codec-http` component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an attacker to bypass security controls or access unauthorized resources in proxy/backend deployments.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- Weakness (CWE)
- CWE-444
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Build of Debezium 3.6 redhat:debezium | 3.6 | CNA record |
Red Hat Red Hat build of Quarkus 3.27.5.SP2 redhat:quarkus | 3.27 | CNA record |
Red Hat Red Hat AMQ Broker 7 redhat:amq_broker | 7 | CNA record |
Red Hat Red Hat AMQ Clients redhat:amq_clients | 2023 | CNA record |
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 redhat:camel_quarkus | 3 | CNA record |
Red Hat Red Hat build of Apache Camel for Spring Boot 4 redhat:camel_spring_boot | 4 | CNA record |
Red Hat Red Hat build of Apicurio Registry 3 redhat:apicurio_registry | 3 | CNA record |
Red Hat Red Hat Build of Keycloak redhat:build_keycloak | All versions | CNA record |
Red Hat Red Hat Data Grid 8 redhat:jboss_data_grid | 8 | CNA record |
Red Hat Red Hat Fuse 7 redhat:jboss_fuse | 7 | CNA record |
Red Hat Red Hat JBoss Enterprise Application Platform 7 redhat:jboss_enterprise_application_platform | 7 | CNA record |
Red Hat Red Hat Single Sign-On 7 redhat:red_hat_single_sign_on | 7 | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:69440vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:69470vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:83612vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-93574vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2536966issue-tracking, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.