{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-93574", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-18T10:31:41.514Z", "datePublished": "2026-09-18T20:12:43.146Z", "dateUpdated": "2026-10-09T20:19:34.199Z" }, "containers": { "cna": { "title": "Io.netty/netty-codec-http: netty: http request smuggling via post-digit whitespace in chunk-size parsing", "metrics": [ { "other": { "content": { "value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "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." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat build of Quarkus 3.27.5.SP2", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "unaffected", "packageName": "netty-codec-http", "cpes": [ "cpe:/a:redhat:quarkus:3.27::el8" ] }, { "vendor": "Red Hat", "product": "Red Hat build of Quarkus 3.33.3.SP2", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "unaffected", "packageName": "netty-codec-http", "cpes": [ "cpe:/a:redhat:quarkus:3.33::el8" ] }, { "vendor": "Red Hat", "product": "Red Hat AMQ Broker 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:amq_broker:7" ] }, { "vendor": "Red Hat", "product": "Red Hat AMQ Clients", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:amq_clients:2023" ] }, { "vendor": "Red Hat", "product": "Red Hat build of Apache Camel 4 for Quarkus 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:camel_quarkus:3" ] }, { "vendor": "Red Hat", "product": "Red Hat build of Apache Camel for Spring Boot 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:camel_spring_boot:4" ] }, { "vendor": "Red Hat", "product": "Red Hat build of Apicurio Registry 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:apicurio_registry:3" ] }, { "vendor": "Red Hat", "product": "Red Hat build of Debezium 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:debezium:3" ] }, { "vendor": "Red Hat", "product": "Red Hat Build of Keycloak", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:build_keycloak:" ] }, { "vendor": "Red Hat", "product": "Red Hat Data Grid 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:jboss_data_grid:8" ] }, { "vendor": "Red Hat", "product": "Red Hat Fuse 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "unknown", "cpes": [ "cpe:/a:redhat:jboss_fuse:7" ] }, { "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "netty-codec-http", "defaultStatus": "unknown", "cpes": [ "cpe:/a:redhat:jboss_enterprise_application_platform:7" ] }, { "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "netty-codec-http", "defaultStatus": "affected", "cpes": [ "cpe:/a:redhat:jboss_enterprise_application_platform:8" ] }, { "vendor": "Red Hat", "product": "Red Hat Single Sign-On 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "netty-codec-http", "defaultStatus": "unknown", "cpes": [ "cpe:/a:redhat:red_hat_single_sign_on:7" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHSA-2026:69440", "name": "RHSA-2026:69440", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:69470", "name": "RHSA-2026:69470", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2026-93574", "tags": [ "vdb-entry", "x_refsource_REDHAT" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536966", "name": "RHBZ#2536966", "tags": [ "issue-tracking", "x_refsource_REDHAT" ] } ], "datePublic": "2026-09-10T00:52:52.000Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-444", "description": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')", "workarounds": [ { "lang": "en", "value": "See https://github.com/netty/netty/security/advisories/GHSA-j4mg-hqgv-34qc for fixed versions and remediation guidance." } ], "timeline": [ { "lang": "en", "time": "2026-09-10T00:52:52.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-09-10T00:52:52.000Z", "value": "Made public." } ], "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-09T20:19:34.199Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-21T18:18:47.806786Z", "id": "CVE-2026-93574", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-21T18:19:07.477Z" } } ] } }