{"id":"EUVD-2026-56407","revision":"c4bd7d0a6ed24565987f680bde481342","records":[{"revision":"c4bd7d0a6ed24565987f680bde481342","observedAt":"2026-10-28T08:40:58.604+00:00","statement":{"source":"euvd","id":"EUVD-2026-56407","aliases":["CVE-2026-62899","GHSA-r6mh-95jw-g7qg"],"title":"Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.","description":"Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","score":5.9,"severity":null}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62899"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-56407","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 11, 2026, 5:04:40 PM","dateUpdated":"Oct 21, 2026, 8:52:15 PM"},"relatedAdvisories":[{"id":"NCSC-2026-0285","title":"Kwetsbaarheden verholpen in Microsoft Developer Tools","vulnerabilityIds":["CVE-2026-58612","CVE-2026-59119","CVE-2026-70338","CVE-2026-70337","CVE-2026-58650","CVE-2026-59113","CVE-2026-47285","CVE-2026-69320","CVE-2026-69278","CVE-2026-69306","CVE-2026-70335","CVE-2026-70336","CVE-2026-62897","CVE-2026-62872","CVE-2026-65810","CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62902","CVE-2026-62909","CVE-2026-58641","CVE-2026-62871","CVE-2026-62886","CVE-2026-70354","CVE-2026-65675","CVE-2026-54981"]},{"id":"RHSA-2026:55858","title":"Red Hat Security Advisory: .NET 10.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:44914","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62902","CVE-2026-62909"]},{"id":"RHSA-2026:54538","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:58566","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-47300","CVE-2026-47302","CVE-2026-47303","CVE-2026-47304","CVE-2026-50524","CVE-2026-50525","CVE-2026-50526","CVE-2026-50527","CVE-2026-50528","CVE-2026-50646","CVE-2026-50648","CVE-2026-50649","CVE-2026-50650","CVE-2026-50651","CVE-2026-50659","CVE-2026-56170","CVE-2026-57108","CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:58569","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-47300","CVE-2026-47302","CVE-2026-47303","CVE-2026-47304","CVE-2026-50524","CVE-2026-50525","CVE-2026-50526","CVE-2026-50527","CVE-2026-50528","CVE-2026-50646","CVE-2026-50648","CVE-2026-50649","CVE-2026-50650","CVE-2026-50651","CVE-2026-50659","CVE-2026-56170","CVE-2026-57108","CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:54542","title":"Red Hat Security Advisory: .NET 10.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:58568","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-47300","CVE-2026-47302","CVE-2026-47303","CVE-2026-47304","CVE-2026-50524","CVE-2026-50525","CVE-2026-50526","CVE-2026-50527","CVE-2026-50528","CVE-2026-50646","CVE-2026-50648","CVE-2026-50649","CVE-2026-50650","CVE-2026-50651","CVE-2026-50659","CVE-2026-56170","CVE-2026-57108","CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:54590","title":"Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"msrc_CVE-2026-62899","title":".NET Security Feature Bypass Vulnerability","vulnerabilityIds":["CVE-2026-62899"]},{"id":"RHSA-2026:58567","title":"Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-47300","CVE-2026-47302","CVE-2026-47303","CVE-2026-47304","CVE-2026-50524","CVE-2026-50525","CVE-2026-50526","CVE-2026-50527","CVE-2026-50528","CVE-2026-50646","CVE-2026-50648","CVE-2026-50649","CVE-2026-50650","CVE-2026-50651","CVE-2026-50659","CVE-2026-56170","CVE-2026-57108","CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:55142","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:55856","title":"Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:54550","title":"Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:54541","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:55405","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62902","CVE-2026-62909"]},{"id":"RHSA-2026:54574","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:55857","title":"Red Hat Security Advisory: .NET 10.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]},{"id":"RHSA-2026:58570","title":"Red Hat Security Advisory: .NET 9.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-47300","CVE-2026-47302","CVE-2026-47303","CVE-2026-47304","CVE-2026-50524","CVE-2026-50525","CVE-2026-50526","CVE-2026-50527","CVE-2026-50528","CVE-2026-50646","CVE-2026-50648","CVE-2026-50649","CVE-2026-50650","CVE-2026-50651","CVE-2026-50659","CVE-2026-56170","CVE-2026-57108","CVE-2026-62899","CVE-2026-62900","CVE-2026-62901","CVE-2026-62909"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-56407","identifiers":["EUVD-2026-56407","CVE-2026-62899","GHSA-r6mh-95jw-g7qg"]},"retained":false,"historicalAffected":[]}],"coverage":[]}