{"affected":[{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"io.netty/netty-codec-http2","product":"Red Hat Build of Apache Camel 3.33.3.SP2","source":"CNA: redhat","vendor":"Red Hat","versions":[{"lessThan":"*","status":"unaffected","version":"4.1.138.Final-redhat-00001","versionType":"rpm"}]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat Build of Debezium 3.6","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","packageName":"netty-codec-http2","product":"Red Hat build of Quarkus 3.27.5.SP2","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","packageName":"netty-codec-http2","product":"Red Hat build of Quarkus 3.33.3.SP2","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat JBoss Enterprise Application Platform 8.1","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat AMQ Broker 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat build of Apache Camel 4 for Quarkus 3","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat build of Apache Camel for Spring Boot 4","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat build of Apicurio Registry 3","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat Build of Keycloak","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat Data Grid 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat Fuse 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","packageName":"netty-codec-http2","product":"Red Hat JBoss Enterprise Application Platform 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","packageName":"netty-codec-http2","product":"Red Hat JBoss Enterprise Application Platform 8","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html","packageName":"netty-codec-http2","product":"Red Hat JBoss Enterprise Application Platform Expansion Pack","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"affected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"netty-codec-http2","product":"Red Hat Single Sign-On 7","source":"CNA: redhat","vendor":"Red Hat","versions":[]}],"cveId":"CVE-2026-93568","cwes":["CWE-20"],"description":"A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 Extended CONNECT requests. Netty's HTTP-object conversion path incorrectly processes these requests as regular HTTP/1.1 CONNECT requests, leading to a loss of critical protocol and path information. This misinterpretation can allow attackers to bypass security policies, such as routing or authorization logic, in applications that rely on Netty for HTTP/2 or HTTP/3 communication, resulting in integrity loss.","epss":{"date":"2026-11-04","percentile":0.61494,"score":0.00955},"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"}],"modifiedAt":1793803578795,"publishedAt":1789742044546,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:69440"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:69470"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:70257"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:83612"},{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:95221"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-93568"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536961"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"See https://github.com/netty/netty/security/advisories/GHSA-w6j8-x45j-w75f for fixed versions and remediation guidance."}],"revision":"9535c6574f43c3afbc01e93776eb2b97ba6bde41a67bd65ac32f6f47fe593012","sources":[{"modifiedAt":1793803578795,"name":"CNA: redhat","retrievedAt":1793805106685,"url":"https://www.cve.org/CVERecord?id=CVE-2026-93568"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793805117348,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93568"}],"ssvc":{"assessedAt":1789744786334,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Io.netty/netty-codec-http2: io.netty/netty-codec-http3: netty: http/2 and http/3 extended connect requests are downgraded as regular connect requests","updatedAt":1793805117348}