7.5

CVE-2026-93567

Io.netty/netty-codec-http2: 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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
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Produkt Red Hat AMQ Broker 7
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Produkt Red Hat build of Apache Camel 4 for Quarkus 3
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Produkt Red Hat build of Apicurio Registry 3
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Produkt Red Hat build of Debezium 3
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Produkt Red Hat Build of Keycloak
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Produkt Red Hat Data Grid 8
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Produkt Red Hat Fuse 7
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Produkt Red Hat JBoss Enterprise Application Platform 7
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Produkt Red Hat JBoss Enterprise Application Platform 8
Default Statusaffected
HerstellerRed Hat
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Produkt Red Hat Single Sign-On 7
Default Statusaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.336
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://access.redhat.com/security/cve/CVE-2026-93567
https://bugzilla.redhat.com/show_bug.cgi?id=2536955
https://access.redhat.com/errata/RHSA-2026:69470
https://access.redhat.com/errata/RHSA-2026:69440
https://access.redhat.com/errata/RHSA-2026:70257