ASP.NET Coreに権限昇格の脆弱性、修正版あり

CVE-2026-114146 First seen on SecPulse 03:20

Summary

ASP.NET Coreの認可の不備により、低い権限を持つ攻撃者がネットワーク越しに権限を引き上げられる脆弱性が公表されました。.NET 8〜11やVisual Studioを使う組織は、対象の洗い出しと修正版への更新を進めてください。

Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.

Ecosystem	Package	Affected → Fixed	Fixed
Microsoft	Microsoft.NET 10.0 installed on Linux	≥ 10.0.0, < 10.0.15→ 10.0.15	10.0.15
Microsoft	Microsoft.NET 10.0 installed on Mac OS	≥ 10.0.0, < 10.0.15→ 10.0.15	10.0.15
Microsoft	Microsoft.NET 10.0 installed on Windows	≥ 10.0.0, < 10.0.15→ 10.0.15	10.0.15
Microsoft	Microsoft.NET 11.0 installed on Linux	≥ 11.0.0-preview.1, < 11.0.0→ 11.0.0	11.0.0
Microsoft	Microsoft.NET 11.0 installed on Mac OS	≥ 11.0.0-preview.1, < 11.0.0→ 11.0.0	11.0.0
Microsoft	Microsoft.NET 11.0 installed on Windows	≥ 11.0.0-preview.1, < 11.0.0→ 11.0.0	11.0.0
Microsoft	Microsoft.NET 8.0 installed on Linux	≥ 8.0.0, < 8.0.34→ 8.0.34	8.0.34
Microsoft	Microsoft.NET 8.0 installed on Mac OS	≥ 8.0.0, < 8.0.34→ 8.0.34	8.0.34
Microsoft	Microsoft.NET 8.0 installed on Windows	≥ 8.0.0, < 8.0.34→ 8.0.34	8.0.34
Microsoft	Microsoft.NET 9.0 installed on Linux	≥ 9.0.0, < 9.0.23→ 9.0.23	9.0.23
Microsoft	Microsoft.NET 9.0 installed on Mac OS	≥ 9.0.0, < 9.0.23→ 9.0.23	9.0.23
Microsoft	Microsoft.NET 9.0 installed on Windows	≥ 9.0.0, < 9.0.23→ 9.0.23	9.0.23
Microsoft	MicrosoftMicrosoft Visual Studio 2022 version 17.14	≥ 17.14.0, < 17.14.45→ 17.14.45	17.14.45
Microsoft	MicrosoftMicrosoft Visual Studio 2026 version 18.11	≥ 18.11.0, < 18.11.4→ 18.11.4	18.11.4
Microsoft	MicrosoftMicrosoft Visual Studio 2026 version 18.12	< 18.12.0→ 18.12.0	18.12.0
Microsoft	MicrosoftMicrosoft.AspNetCore.Http.Connections	≥ 1.2.0, < 1.2.14→ 1.2.14	1.2.14

Original description The description as published by the source.

Incorrect authorization in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Source: Microsoft Security Response Center Blog NVD