{"id":"CVE-2026-62899","revision":"827da48c362249a8bdcda311dc70610d","records":[{"revision":"827da48c362249a8bdcda311dc70610d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-62899","aliases":[],"title":".NET Security Feature Bypass Vulnerability","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":"2026-08-11T17:04:40.045+00:00","modifiedAt":"2026-10-21T20:52:15.31+00:00","affected":[{"ecosystem":"Vendor product","name":".NET 10.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 10.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"10.0.0\",\n                            \"lessThan\": \"10.0.11\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 8.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 8.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.0.0\",\n                            \"lessThan\": \"8.0.30\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 9.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 9.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"9.0.0\",\n                            \"lessThan\": \"9.0.19\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2022 version 17.14","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2022 version 17.14\",\n                    \"versions\": [\n                        {\n                            \"version\": \"17.14.0\",\n                            \"lessThan\": \"17.14.38\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2026 version 18.8","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2026 version 18.8\",\n                    \"versions\": [\n                        {\n                            \"version\": \"18.0\",\n                            \"lessThan\": \"18.8.3\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"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":"MEDIUM"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62899"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62899","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-62899","identifiers":["CVE-2026-62899"]},"retained":false,"historicalAffected":[]}],"coverage":[]}