CVE-2026-114146
validatedZero produced an exploit or a check.GHSA-67wp-ghc2-fw2g ↗EUVD-2026-121971 ↗
description
Affected ASP.NET Core SignalR applications can fail to consistently associate incoming connection messages with the identity established during negotiation. An authorized attacker who can inject messages into a victim's connection may cause Hub operations to run with the victim's permissions.
mitigation
Update Microsoft.AspNetCore.Http.Connections to 1.2.14, or update the applicable ASP.NET Core runtime package to 8.0.34, 9.0.23, 10.0.15, or 11.0.0. Prioritize applications that expose SignalR endpoints and use authenticated connections.
fixed in 1.2.14, 8.0.34, 9.0.23, 10.0.15, 11.0.0
outcome
Contextual check: a technique exists and was validated, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-11-10 18:19Zghsa: trigger signal, started the run
- 2026-11-10 18:19Zcve.org record for CVE-2026-114146
this entry in the feed
GET /api/v1/feed/CVE-2026-114146
{ "etk_id": "ETK-2026-4119", "cve_id": "CVE-2026-114146", "display_id": "CVE-2026-114146", "ghsa_id": "GHSA-67wp-ghc2-fw2g", "euvd_id": "EUVD-2026-121971", "status": "published", "anchor_state": "anchored", "title": "Incorrect authorization in ASP.NET Core SignalR connections", "summary": "Affected ASP.NET Core SignalR applications can fail to consistently associate incoming connection messages with the identity established during negotiation. An authorized attacker who can inject messages into a victim's connection may cause Hub operations to run with the victim's permissions.", "mitigation": "Update Microsoft.AspNetCore.Http.Connections to 1.2.14, or update the applicable ASP.NET Core runtime package to 8.0.34, 9.0.23, 10.0.15, or 11.0.0. Prioritize applications that expose SignalR endpoints and use authenticated connections.", "vendor": "nuget", "product": "nuget:Microsoft.AspNetCore.Http.Connections", "affected": [ { "affected_notes": [], "affected_ranges": [ ">= 1.2.0, <= 1.2.13" ], "ecosystem": "nuget", "fixed_versions": [ "1.2.14" ], "package_name": "Microsoft.AspNetCore.Http.Connections", "purl": "pkg:nuget/Microsoft.AspNetCore.Http.Connections" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-arm", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-musl-arm", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-musl-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-musl-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.osx-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.osx-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 8.0.0-preview.1.23112.2, <= 8.0.33" ], "ecosystem": "nuget", "fixed_versions": [ "8.0.34" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x86", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-arm", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-musl-arm", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-musl-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-musl-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.osx-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.osx-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 9.0.22" ], "ecosystem": "nuget", "fixed_versions": [ "9.0.23" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 9.0.0-preview.1.24081.5, <= 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{ "affected_notes": [], "affected_ranges": [ ">= 10.0.0-preview.1.25120.3, <= 10.0.14" ], "ecosystem": "nuget", "fixed_versions": [ "10.0.15" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 10.0.0-preview.1.25120.3, <= 10.0.14" ], "ecosystem": "nuget", "fixed_versions": [ "10.0.15" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x86", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-arm", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], 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"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.linux-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.osx-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.osx-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-arm64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm64" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x64", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64" }, { "affected_notes": [], "affected_ranges": [ ">= 11.0.0-preview.1.26104.118, <= 11.0.0-rc.3.26522.148" ], "ecosystem": "nuget", "fixed_versions": [ "11.0.0" ], "package_name": "Microsoft.AspNetCore.App.Runtime.win-x86", "purl": "pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86" } ], "cwes": [ 863 ], "cvss_score": 9, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "epss_score": null, "epss_percentile": null, "epss_asof": null, "automation": "contextual", "check": true, "check_confidence_basis": "assessed", "exploit": false, "pipeline_minutes": 34.00055141666667, "t0_at": "2026-11-10T18:19:12.520000+00:00", "signals": { "check": { "at": "2026-11-11T00:43:55.534656+00:00", "days": 0.26716452148148145, "is_lower_bound": false, "measured_at": "2026-11-10T18:19:12.520000+00:00", "url": null }, "trigger_signal": { "at": "2026-11-10T18:19:12.520000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-11-10T18:19:12.520000+00:00", "url": "https://github.com/dotnet/aspnetcore/security/advisories/GHSA-67wp-ghc2-fw2g" } } }
published 2026-11-11 00:09Z
last change 2026-11-11 03:31Z
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