---
id: CVE-2026-96231
title: >-
  Improper link resolution before file access ('link following') in .NET allows
  an authorized attacker to elevate privileges locally.
summary: >-
  Improper link resolution before file access ('link following') in .NET allows
  an authorized attacker to elevate privileges locally.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-59
vendor: Microsoft
product: Microsoft.NETCore.App.Runtime.linux-arm
affected:
  - 'Microsoft.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31'
  - 'Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12'
  - 'Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20'
  - 'Microsoft.NETCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1'
  - >-
    Microsoft.NETCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <=
    11.0.0-rc.1
  - >-
    Microsoft.NETCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <=
    11.0.0-rc.1
  - >-
    Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <=
    11.0.0-rc.1
  - >-
    Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <=
    11.0.0-rc.1
  - 'Microsoft.NETCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1'
  - 'Microsoft.NETCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1'
  - 'Microsoft.NETCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1'
patched:
  - Microsoft.NETCore.App.Runtime.linux-arm 8.0.32
  - Microsoft.NETCore.App.Runtime.linux-arm64 8.0.32
  - Microsoft.NETCore.App.Runtime.linux-musl-arm 8.0.32
  - Microsoft.NETCore.App.Runtime.linux-musl-arm64 8.0.32
  - Microsoft.NETCore.App.Runtime.linux-musl-x64 8.0.32
  - Microsoft.NETCore.App.Runtime.linux-x64 8.0.32
  - Microsoft.NETCore.App.Runtime.osx-arm64 8.0.32
  - Microsoft.NETCore.App.Runtime.osx-x64 8.0.32
  - Microsoft.NETCore.App.Runtime.linux-arm 10.0.13
  - Microsoft.NETCore.App.Runtime.linux-arm64 10.0.13
  - Microsoft.NETCore.App.Runtime.linux-musl-arm 10.0.13
  - Microsoft.NETCore.App.Runtime.linux-musl-arm64 10.0.13
  - Microsoft.NETCore.App.Runtime.linux-musl-x64 10.0.13
  - Microsoft.NETCore.App.Runtime.linux-x64 10.0.13
  - Microsoft.NETCore.App.Runtime.osx-arm64 10.0.13
  - Microsoft.NETCore.App.Runtime.osx-x64 10.0.13
  - Microsoft.NETCore.App.Runtime.linux-arm 9.0.21
  - Microsoft.NETCore.App.Runtime.linux-arm64 9.0.21
  - Microsoft.NETCore.App.Runtime.linux-musl-arm 9.0.21
  - Microsoft.NETCore.App.Runtime.linux-musl-arm64 9.0.21
  - Microsoft.NETCore.App.Runtime.linux-musl-x64 9.0.21
  - Microsoft.NETCore.App.Runtime.linux-x64 9.0.21
  - Microsoft.NETCore.App.Runtime.osx-arm64 9.0.21
  - Microsoft.NETCore.App.Runtime.osx-x64 9.0.21
  - Microsoft.NETCore.App.Runtime.linux-arm 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.linux-arm64 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.linux-musl-arm 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.linux-musl-x64 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.linux-x64 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.osx-arm64 11.0.0-rc.2
  - Microsoft.NETCore.App.Runtime.osx-x64 11.0.0-rc.2
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T20:19:14.477'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96231'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96231'
    label: secure@microsoft.com
  - url: 'https://github.com/dotnet/runtime/security/advisories/GHSA-2j93-m82w-73j2'
  - url: 'https://github.com/dotnet/announcements/issues/479'
  - url: 'https://github.com/dotnet/runtime/issues/135707'
  - url: 'https://github.com/advisories/GHSA-2j93-m82w-73j2'
tags:
  - nvd
  - ghsa
  - nuget
aliases:
  - GHSA-2j93-m82w-73j2
ecosystem: nuget
ingestedAt: '2026-10-13T19:43:29.253Z'
---

## Overview

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-96231)

Affected packages:

- `Microsoft.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31`
- `Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12`
- `Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20`
- `Microsoft.NETCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`
- `Microsoft.NETCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`

Patched in:

- `Microsoft.NETCore.App.Runtime.linux-arm 8.0.32`
- `Microsoft.NETCore.App.Runtime.linux-arm64 8.0.32`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm 8.0.32`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 8.0.32`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 8.0.32`
- `Microsoft.NETCore.App.Runtime.linux-x64 8.0.32`
- `Microsoft.NETCore.App.Runtime.osx-arm64 8.0.32`
- `Microsoft.NETCore.App.Runtime.osx-x64 8.0.32`
- `Microsoft.NETCore.App.Runtime.linux-arm 10.0.13`
- `Microsoft.NETCore.App.Runtime.linux-arm64 10.0.13`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm 10.0.13`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 10.0.13`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 10.0.13`
- `Microsoft.NETCore.App.Runtime.linux-x64 10.0.13`
- `Microsoft.NETCore.App.Runtime.osx-arm64 10.0.13`
- `Microsoft.NETCore.App.Runtime.osx-x64 10.0.13`
- `Microsoft.NETCore.App.Runtime.linux-arm 9.0.21`
- `Microsoft.NETCore.App.Runtime.linux-arm64 9.0.21`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm 9.0.21`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 9.0.21`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 9.0.21`
- `Microsoft.NETCore.App.Runtime.linux-x64 9.0.21`
- `Microsoft.NETCore.App.Runtime.osx-arm64 9.0.21`
- `Microsoft.NETCore.App.Runtime.osx-x64 9.0.21`
- `Microsoft.NETCore.App.Runtime.linux-arm 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.linux-arm64 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.linux-x64 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.osx-arm64 11.0.0-rc.2`
- `Microsoft.NETCore.App.Runtime.osx-x64 11.0.0-rc.2`

Source: https://github.com/advisories/GHSA-2j93-m82w-73j2