CVE-2026-935677.5HighCWE-20

CVE-2026-93567: Io.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authority

Red Hat · Red Hat Build of Apache Camel 3.33.3.SP2

Vendor fix available · Affected: Red Hat Build of Apache Camel 3.33.3.SP2 · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.9%probability of exploitation in the next 30 days

87th percentile

050100

Higher than 87% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products20

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Red Hat · Red Hat Build of Apache Camel 3.33.3.SP2Versions not stated
Red Hat · Red Hat Build of Debezium 3.6Versions not stated
Red Hat · Red Hat build of Keycloak 26.4Versions not stated
Red Hat · Red Hat build of Keycloak 26.4Versions not stated
Red Hat · Red Hat build of Keycloak 26.4Versions not stated
Red Hat · Red Hat build of Keycloak 26.4.17Versions not stated
Red Hat · Red Hat build of Keycloak 26.6Versions not stated
Red Hat · Red Hat build of Keycloak 26.6Versions not stated
Red Hat · Red Hat build of Keycloak 26.6Versions not stated
Red Hat · Red Hat build of Keycloak 26.6.8Versions not stated
Red Hat · Red Hat build of Quarkus 3.27.5.SP2Versions not stated
Red Hat · Red Hat build of Quarkus 3.33.3.SP2Versions not stated
Red Hat · Red Hat JBoss Enterprise Application Platform 8.1Versions not stated
Red Hat · Red Hat AMQ Broker 7Versions not stated
Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3Versions not stated
Red Hat · Red Hat build of Apache Camel for Spring Boot 4Versions not stated
Red Hat · Red Hat build of Apicurio Registry 3Versions not stated
Red Hat · Red Hat Data Grid 8Versions not stated
Red Hat · Red Hat Fuse 7Versions not stated
Red Hat · Red Hat JBoss Enterprise Application Platform 7Versions not stated

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Input Validation · Input Validation and Logic
Vendor: Red Hat
Published: September 2026
Band: Possible (1 to 10%), September 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-93567 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.