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{"affected": [{"affectedData": [{"product": ".NET 10.0", "vendor": "Microsoft", "versions": [{"lessThan": "10.0.11", "status": "affected", "version": "10.0.0", "versionType": "custom"}]}, {"product": ".NET 8.0", "vendor": "Microsoft", "versions": [{"lessThan": "8.0.30", "status": "affected", "version": "8.0.0", "versionType": "custom"}]}, {"product": ".NET 9.0", "vendor": "Microsoft", "versions": [{"lessThan": "9.0.19", "status": "affected", "version": "9.0.0", "versionType": "custom"}]}, {"product": "Microsoft Visual Studio 2022 version 17.14", "vendor": "Microsoft", "versions": [{"lessThan": "17.14.38", "status": "affected", "version": "17.14.0", "versionType": "custom"}]}, {"product": "Microsoft Visual Studio 2026 version 18.8", "vendor": "Microsoft", "versions": [{"lessThan": "18.8.3", "status": "affected", "version": "18.0", "versionType": "custom"}]}], "source": "secure@microsoft.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network."}], "id": "CVE-2026-62899", "lastModified": "2026-08-11T18:53:42.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "secure@microsoft.com", "type": "Primary"}]}, "published": "2026-08-11T17:18:44.120", "references": [{"source": "secure@microsoft.com", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62899"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "secure@microsoft.com", "type": "Primary"}]}

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