{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-28368", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-02-27T04:42:16.439Z", "datePublished": "2026-03-27T16:13:03.775Z", "dateUpdated": "2026-04-01T13:36:03.846Z"}, "containers": {"cna": {"title": "Undertow: undertow: request smuggling via inconsistent header parsing", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat build of Apache Camel for Spring Boot 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:camel_spring_boot:4"]}, {"vendor": "Red Hat", "product": "Red Hat build of Apache Camel - HawtIO 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:apache_camel_hawtio:4"]}, {"vendor": "Red Hat", "product": "Red Hat Data Grid 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_data_grid:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "moditect", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:10"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "pki-core:10.6/resteasy", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "pki-deps:10.6/resteasy", "defaultStatus": "unaffected", "cpes": ["cpe:/o:redhat:enterprise_linux:8"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "resteasy", "defaultStatus": "affected", "cpes": ["cpe:/o:redhat:enterprise_linux:9"]}, {"vendor": "Red Hat", "product": "Red Hat Fuse 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "undertow-core", "defaultStatus": "affected", "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": "undertow-core", "defaultStatus": "affected", "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": "org.jberet-jberet-parent", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "org.jboss.eap-jboss-eap-xp", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "org.jberet-jberet-parent", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jbosseapxp"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "org.jboss.eap-jboss-eap-xp", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jbosseapxp"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jbosseapxp"]}, {"vendor": "Red Hat", "product": "Red Hat Process Automation 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_bpms_platform:7"]}, {"vendor": "Red Hat", "product": "Red Hat Single Sign-On 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "undertow-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-28368", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443261", "name": "RHBZ#2443261", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2025-08-27T00:00:00.000Z", "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": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}], "timeline": [{"lang": "en", "time": "2026-02-27T04:39:57.578Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-08-27T00:00:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-04-01T13:36:03.846Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-27T18:49:45.702271Z", "id": "CVE-2026-28368", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-27T19:57:36.565Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-28368", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-03-27T18:49:45.702271Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-27T18:49:50.042Z"}}], "cna": {"title": "Undertow: undertow: request smuggling via inconsistent header parsing", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"cpes": ["cpe:/a:redhat:camel_spring_boot:4"], "vendor": "Red Hat", "product": "Red Hat build of Apache Camel for Spring Boot 4", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:apache_camel_hawtio:4"], "vendor": "Red Hat", "product": "Red Hat build of Apache Camel - HawtIO 4", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_data_grid:8"], "vendor": "Red Hat", "product": "Red Hat Data Grid 8", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "moditect", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "pki-core:10.6/resteasy", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "pki-deps:10.6/resteasy", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "packageName": "resteasy", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_fuse:7"], "vendor": "Red Hat", "product": "Red Hat Fuse 7", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "org.jberet-jberet-parent", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "org.jboss.eap-jboss-eap-xp", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "org.jberet-jberet-parent", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "org.jboss.eap-jboss-eap-xp", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_bpms_platform:7"], "vendor": "Red Hat", "product": "Red Hat Process Automation 7", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7"], "vendor": "Red Hat", "product": "Red Hat Single Sign-On 7", "packageName": "undertow-core", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}], "timeline": [{"lang": "en", "time": "2026-02-27T04:39:57.578Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2025-08-27T00:00:00.000Z", "value": "Made public."}], "datePublic": "2025-08-27T00:00:00.000Z", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-28368", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443261", "name": "RHBZ#2443261", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "workarounds": [{"lang": "en", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-444", "description": "Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-04-01T13:36:03.846Z"}, "x_redhatCweChain": "CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')"}}, "cveMetadata": {"cveId": "CVE-2026-28368", "state": "PUBLISHED", "dateUpdated": "2026-04-01T13:36:03.846Z", "dateReserved": "2026-02-27T04:42:16.439Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2026-03-27T16:13:03.775Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:build_of_apache_camel_-_hawtio:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "19B253BB-F6CE-400B-87EF-1DF1AFFC2445", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:build_of_apache_camel_for_spring_boot:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "06A6AC25-2E2D-4359-A806-CC0355513A20", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:data_grid:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "7095200A-4DAC-4433-99E8-86CA88E1E4D4", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:fuse:7.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "AAD91726-93D9-4230-BF69-6A79B58E09E0", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "72A54BDA-311C-413B-8E4D-388AD65A170A", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "0D8BC03A-4198-4488-946B-3F6B43962942", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*", "matchCriteriaId": "0A24CBFB-4900-47A5-88D2-A44C929603DC", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:process_automation:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "20A6B40D-F991-4712-8E30-5FE008505CB7", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "9EFEC7CA-8DDA-48A6-A7B6-1F1D14792890", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:undertow:-:*:*:*:*:*:*:*", "matchCriteriaId": "8190B427-8350-43AE-8F54-6A40B701C95E", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources."}], "id": "CVE-2026-28368", "lastModified": "2026-03-31T18:20:30.077", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.8, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-03-27T17:16:27.993", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2026-28368"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443261"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 87.0, "confidence_source": "matching", "scores": [{"score": 87.0, "source": "matching"}]}, "original": {"product": "Red Hat build of Apache Camel - HawtIO 4", "source": "cna", "vendor": "Red Hat"}, "product": "build_of_apache_camel_-_hawtio", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "Red Hat build of Apache Camel for Spring Boot 4", "source": "cna", "vendor": "Red Hat"}, "product": "build_of_apache_camel_for_spring_boot", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Data Grid 8", "source": "cna", "vendor": "Red Hat"}, "product": "data_grid", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Enterprise Linux 10", "source": "cna", "vendor": "Red Hat"}, "product": "enterprise_linux", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "Red Hat Fuse 7", "source": "cna", "vendor": "Red Hat"}, "product": "fuse", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 89.0, "confidence_source": "matching", "scores": [{"score": 89.0, "source": "matching"}]}, "original": {"product": "Red Hat JBoss Enterprise Application Platform 7", "source": "cna", "vendor": "Red Hat"}, "product": "jboss_enterprise_application_platform", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 93.0, "source": "matching"}]}, "original": {"product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "source": "cna", "vendor": "Red Hat"}, "product": "jboss_enterprise_application_platform_expansion_pack", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 82.0, "confidence_source": "matching", "scores": [{"score": 82.0, "source": "matching"}]}, "original": {"product": "Red Hat Process Automation 7", "source": "cna", "vendor": "Red Hat"}, "product": "process_automation", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "matching"}]}, "original": {"product": "Red Hat Single Sign-On 7", "source": "cna", "vendor": "Red Hat"}, "product": "red_hat_single_sign_on", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 85.0, "confidence_source": "inferred", "scores": [{"score": 85.0, "source": "inferred"}, {"score": 97.0, "source": "matching"}]}, "product": "undertow", "vendor": "redhat"}], "analysis": {"en": {"generated_at": "2026-03-27T17:22:15.314045+00:00", "value": {"mitigation_remediation": ["Check if your environment uses any of the affected Red\u00a0Hat components listed above.", "Consult Red\u00a0Hat security advisories and install any available updates or patches for the affected products.", "If a patch is not yet released, block or restrict external access to the Undertow services or route traffic through a proxy that normalizes headers.", "Implement network monitoring to detect anomalous HTTP request patterns indicative of smuggling attempts.", "Maintain overall system hygiene by applying all other relevant Red\u00a0Hat security updates and following best\u2011practice hardening guidelines."], "summary": {"action": "Apply Patch", "impact": "Remote request smuggling allowing unauthorized access"}, "threat_synthesis": {"affected_systems": "The vulnerability affects several Red\u00a0Hat products, including Red\u00a0Hat Enterprise Linux\u00a08,\u00a09, and\u00a010; Red\u00a0Hat JBoss Enterprise Application Platform\u202f7 and\u202f8; Red\u00a0Hat JBoss Fuse\u202f7; Red\u00a0Hat Process Automation\u202f7; Red\u00a0Hat Single Sign\u2011On\u202f7; Red\u00a0Hat Data\u202fGrid\u202f8; Red\u00a0Hat JBoss Enterprise Application Platform Expansion Pack; and Red\u00a0Hat builds of Apache\u00a0Camel HawtIO and Camel for Spring Boot\u202f4. Any deployment that uses Undertow as its servlet container is at risk.", "description_and_impact": "A flaw exists in Undertow where header names are parsed inconsistently between the server and upstream proxies. This discrepancy, classified as CWE\u2011444, lets a remote attacker craft requests that the proxy interprets differently than Undertow, enabling a request smuggling attack. By smuggling a secondary request into the upstream service, an attacker can bypass normal authentication or security controls and access resources that should be protected.", "risk_and_exploitability": "The CVSS score of 8.7 indicates a high severity, and while EPSS data is not available and the vulnerability is not listed in CISA\u2019s KEV catalog, the attack vector is remote and does not require authentication. An attacker can send specifically crafted HTTP requests over the network to an exposed Undertow\u2011based service, with the headers interpreted differently by a proxy, to smuggle hidden requests into downstream systems. Successful exploitation could result in unauthorized data access, privilege escalation, or disruption of service."}}}}, "created": "2026-03-27T20:28:11.087692+00:00", "updated": "2026-03-30T07:59:35.373076+00:00", "vendors": ["redhat", "redhat$PRODUCT$build_of_apache_camel_-_hawtio", "redhat$PRODUCT$build_of_apache_camel_for_spring_boot", "redhat$PRODUCT$data_grid", "redhat$PRODUCT$enterprise_linux", "redhat$PRODUCT$fuse", "redhat$PRODUCT$jboss_enterprise_application_platform", "redhat$PRODUCT$jboss_enterprise_application_platform_expansion_pack", "redhat$PRODUCT$process_automation", "redhat$PRODUCT$red_hat_single_sign_on", "redhat$PRODUCT$undertow"]}