{"affected":[{"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":"unknown","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":"unknown","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":"unknown","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-2026-93579","cwes":["CWE-1035"],"description":"A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When these values cross an HTTP/2 to HTTP/1.1 translation boundary, they can be exploited for request smuggling, header injection, or response splitting. This could lead to unauthorized access, data manipulation, or other security bypasses.","epss":{"date":"2026-11-04","percentile":0.59663,"score":0.00896},"exploits":[],"kev":null,"metrics":[{"score":6.5,"severity":"medium","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1793803591680,"publishedAt":1789749509480,"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-2026:83612"},{"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-2026-93579"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536970"}],"remediation":[{"kind":"workaround","source":"CNA: redhat","text":"See https://github.com/netty/netty/security/advisories/GHSA-8whp-c7w8-2m72 for fixed versions and remediation guidance."}],"revision":"7c1d6c0452b1b151c24888c2d1754894564c4b172a8c5c2f2b70d17aa12f8100","sources":[{"modifiedAt":1793803591680,"name":"CNA: redhat","retrievedAt":1793805114482,"url":"https://www.cve.org/CVERecord?id=CVE-2026-93579"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793805116876,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93579"}],"ssvc":{"assessedAt":1790020119163,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Io.netty/netty-codec-http2: netty: http/2 header field values are not validated by default (cr/lf/nul passthrough)","updatedAt":1793805116876}