{"schemaVersion":3,"id":"CVE-2026-70175","aliases":["GHSA-x3vp-85cm-q97r","CGA-6hf5-3xv7-6p73","CGA-fwmr-3g4m-8923","CGA-gqqc-x8j2-3wjw","CGA-8vjr-5h2m-8fpc"],"status":"published","duplicateOf":null,"title":null,"description":"Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.","dates":{"published":"2026-10-13T19:00:26.329Z","modified":"2026-10-16T23:20:00.872Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Nuget","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":5.6,"impact":9.8,"computed":true}]},"epss":{"probability":0.00643,"percentile":0.49852,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-14T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00643,"percentile":0.49852}],"last30":[{"date":"2026-10-14T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00643,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00643,"percentile":0.49852}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-640","name":"Weak Password Recovery Mechanism for Forgotten Password","description":"The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/640.html"}],"affected":[{"vendor":"chainguard","product":"dotnet-bootstrap-8","name":"dotnet-bootstrap-8","label":"dotnet-bootstrap-8","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/dotnet-bootstrap-8","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"chainguard","product":"dotnet-bootstrap-9","name":"dotnet-bootstrap-9","label":"dotnet-bootstrap-9","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/dotnet-bootstrap-9","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"wolfi","product":"dotnet-bootstrap-8","name":"dotnet-bootstrap-8","label":"dotnet-bootstrap-8","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/dotnet-bootstrap-8","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"wolfi","product":"dotnet-bootstrap-9","name":"dotnet-bootstrap-9","label":"dotnet-bootstrap-9","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/dotnet-bootstrap-9","purlType":"apk","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"microsoft","product":"asp.net core 10.0","name":"ASP.NET Core 10.0","label":"asp.net core 10.0","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 10.0, < 10.0.13","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 10.0, < 10.0.13","eol":null,"hubHref":"/vendor/microsoft/aspnet_core_100"},{"vendor":"microsoft","product":"asp.net core 8.0","name":"ASP.NET Core 8.0","label":"asp.net core 8.0","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.0, < 8.0.32","eol":null,"hubHref":"/vendor/microsoft/aspnet_core_80"},{"vendor":"microsoft","product":"asp.net core 9.0","name":"ASP.NET Core 9.0","label":"asp.net core 9.0","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 9.0, < 9.0.21","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0, < 9.0.21","eol":null,"hubHref":"/vendor/microsoft/aspnet_core_90"},{"vendor":"microsoft","product":"microsoft visual studio 2022 version 17.14","name":"Microsoft Visual Studio 2022 version 17.14","label":"microsoft visual studio 2022 version 17.14","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 17.14.0, < 17.14.42","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 17.14.0, < 17.14.42","eol":null,"hubHref":"/vendor/microsoft/microsoft_visual_studio_2022_version_1714"},{"vendor":"microsoft","product":"microsoft visual studio 2026 version 18.10","name":"Microsoft Visual Studio 2026 version 18.10","label":"microsoft visual studio 2026 version 18.10","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 18.10.0, < 18.10.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 18.10.0, < 18.10.4","eol":null,"hubHref":"/vendor/microsoft/microsoft_visual_studio_2026_version_1810"},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.linux-arm","name":"Microsoft.AspNetCore.App.Runtime.linux-arm","label":"Microsoft.AspNetCore.App.Runtime.linux-arm","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.linux-arm64","name":"Microsoft.AspNetCore.App.Runtime.linux-arm64","label":"Microsoft.AspNetCore.App.Runtime.linux-arm64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm","name":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm","label":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm64","name":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm64","label":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.linux-musl-x64","name":"Microsoft.AspNetCore.App.Runtime.linux-musl-x64","label":"Microsoft.AspNetCore.App.Runtime.linux-musl-x64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-x64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.linux-x64","name":"Microsoft.AspNetCore.App.Runtime.linux-x64","label":"Microsoft.AspNetCore.App.Runtime.linux-x64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-x64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.osx-arm64","name":"Microsoft.AspNetCore.App.Runtime.osx-arm64","label":"Microsoft.AspNetCore.App.Runtime.osx-arm64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-arm64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.osx-x64","name":"Microsoft.AspNetCore.App.Runtime.osx-x64","label":"Microsoft.AspNetCore.App.Runtime.osx-x64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-x64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.win-arm","name":"Microsoft.AspNetCore.App.Runtime.win-arm","label":"Microsoft.AspNetCore.App.Runtime.win-arm","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.win-arm64","name":"Microsoft.AspNetCore.App.Runtime.win-arm64","label":"Microsoft.AspNetCore.App.Runtime.win-arm64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.win-x64","name":"Microsoft.AspNetCore.App.Runtime.win-x64","label":"Microsoft.AspNetCore.App.Runtime.win-x64","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null},{"vendor":"NuGet","product":"Microsoft.AspNetCore.App.Runtime.win-x86","name":"Microsoft.AspNetCore.App.Runtime.win-x86","label":"Microsoft.AspNetCore.App.Runtime.win-x86","ecosystem":"NuGet","cpePart":null,"purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86","purlType":"nuget","versions":[{"text":"≥ 9.0.0, < 9.0.21","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.0.0, < 10.0.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 8.0.0, < 8.0.32","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 9.0.0, < 9.0.21 | ≥ 10.0.0, < 10.0.13 | ≥ 8.0.0, < 8.0.32","eol":null,"hubHref":null}],"affectedCount":21,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70175","label":"msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70175","hostname":"msrc.microsoft.com","tags":["Vendor Advisory","Patch"]},{"url":"https://github.com/dotnet/aspnetcore/security/advisories/GHSA-x3vp-85cm-q97r","label":"github.com/dotnet/aspnetcore/security/advisories/GHSA-x3vp-85cm-q97r","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/dotnet/announcements/issues/457","label":"github.com/dotnet/announcements/issues/457","hostname":"github.com","tags":["WEB"]},{"url":"https://github.com/dotnet/aspnetcore","label":"github.com/dotnet/aspnetcore","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://github.com/dotnet/aspnetcore/discussions/69793","label":"github.com/dotnet/aspnetcore/discussions/69793","hostname":"github.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-13T19:00:26.329Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-16T23:20:00.872Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":33,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T15:46:35.418Z","stale":false,"partial":false}}