{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-70159", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-08-03T23:36:51.174Z", "datePublished": "2026-10-13T19:00:26.047Z", "dateUpdated": "2026-10-13T20:36:40.025Z"}, "containers": {"cna": {"title": "ASP.NET Core Denial of Service Vulnerability", "datePublic": "2026-10-13T14:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:microsoft.aspnetcore.signalr.common:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0", "versionEndExcluding": "10.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:microsoft.aspnetcore.signalr.core:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0.0", "versionEndExcluding": "1.2.14"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.10:*:*:*:*:*:*:*:*", "versionStartIncluding": "18.10.0", "versionEndExcluding": "18.10.4"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*", "versionStartIncluding": "17.14.0", "versionEndExcluding": "17.14.42"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Microsoft Visual Studio 2022 version 17.14", "versions": [{"version": "17.14.0", "lessThan": "17.14.42", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Visual Studio 2026 version 18.10", "versions": [{"version": "18.10.0", "lessThan": "18.10.4", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft.AspNetCore.SignalR.Common", "platforms": [".NET 10.0 installed on Linux", ".NET 10.0 installed on Mac OS", ".NET 10.0 installed on Windows", ".NET 11.0 installed on Linux", ".NET 11.0 installed on Mac OS", ".NET 11.0 installed on Windows", ".NET 8.0 installed on Linux", ".NET 8.0 installed on Mac OS", ".NET 8.0 installed on Windows", ".NET 9.0 installed on Linux", ".NET 9.0 installed on Mac OS", ".NET 9.0 installed on Windows"], "versions": [{"version": "10.0.0", "lessThan": "10.0.13", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft.AspNetCore.SignalR.Core", "platforms": [".NET 10.0 installed on Linux", ".NET 10.0 installed on Mac OS", ".NET 10.0 installed on Windows", ".NET 11.0 installed on Linux", ".NET 11.0 installed on Mac OS", ".NET 11.0 installed on Windows", ".NET 8.0 installed on Linux", ".NET 8.0 installed on Mac OS", ".NET 8.0 installed on Windows", ".NET 9.0 installed on Linux", ".NET 9.0 installed on Mac OS", ".NET 9.0 installed on Windows"], "versions": [{"version": "1.0.0", "lessThan": "1.2.14", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-770: Allocation of Resources Without Limits or Throttling", "lang": "en-US", "type": "CWE", "cweId": "CWE-770"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-10-13T20:36:40.025Z"}, "references": [{"name": "ASP.NET Core Denial of Service Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70159"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C"}}]}}}

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