p PatchFirst

CVE-2026-47300

CVE-2026-47300 · ASP.NET Core Elevation of Privilege Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

CVSS 8.8 · High · EPSS 0.8% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • .net 10.0 runtime

    Versions
    • ≥ 10.0.0, < 10.0.10: Affected (custom)

    Update to 10.0.10

  • .net 8.0 runtime

    Versions
    • ≥ 8.0.0, < 8.0.29: Affected (custom)

    Update to 8.0.29

  • .net 9.0 runtime

    Versions
    • ≥ 9.0.0, < 9.0.18: Affected (custom)

    Update to 9.0.18

  • microsoft visual studio 2022 version 17.12

    Versions
    • ≥ 17.12.0, < 17.12.22: Affected (custom)

    Update to 17.12.22

  • microsoft visual studio 2022 version 17.14

    Versions
    • ≥ 17.14.0, < 17.14.36: Affected (custom)

    Update to 17.14.36

  • microsoft visual studio 2026 version 18.7

    Versions
    • ≥ 18.0, < 18.7.4: Affected (custom)

    Update to 18.7.4

  • dotnet6 Ubuntu:22.04:LTS

    Versions
    • 6.0.108-0ubuntu1~22.04.1
    • 6.0.109-0ubuntu1~22.04.1
    • 6.0.110-0ubuntu1~22.04.1
    • 6.0.111-0ubuntu1~22.04.1
    • 6.0.113-0ubuntu1~22.04.1
    • 6.0.116-0ubuntu1~22.04.1
    • 6.0.118-0ubuntu1~22.04.1
    • 6.0.119-0ubuntu1~22.04.1
    • 6.0.120-0ubuntu1~22.04.1
    • 6.0.121-0ubuntu1~22.04.1
    • 6.0.122-0ubuntu1~22.04.1
    • 6.0.123-0ubuntu1~22.04.1
    • 6.0.124-0ubuntu1~22.04.1
    • 6.0.125-0ubuntu1~22.04.1
    • 6.0.126-0ubuntu1~22.04.1
    • 6.0.127-0ubuntu1~22.04.1
    • 6.0.128-0ubuntu1~22.04.2
    • 6.0.132-0ubuntu1~22.04.1
    • 6.0.133-0ubuntu1~22.04.1
    • 6.0.135-0ubuntu1~22.04.1
    • 6.0.136-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dotnet7 Ubuntu:22.04:LTS

    Versions
    • 7.0.105-0ubuntu1~22.04.1
    • 7.0.107-0ubuntu1~22.04.1
    • 7.0.108-0ubuntu1~22.04.1
    • 7.0.109-0ubuntu1~22.04.1
    • 7.0.110-0ubuntu1~22.04.1
    • 7.0.111-0ubuntu1~22.04.1
    • 7.0.112-0ubuntu1~22.04.1
    • 7.0.113-0ubuntu1~22.04.1
    • 7.0.114-0ubuntu1~22.04.1
    • 7.0.115-0ubuntu1~22.04.1
    • 7.0.116-0ubuntu1~22.04.1
    • 7.0.117-0ubuntu1~22.04.1
    • 7.0.117-0ubuntu1~22.04.2
    • 7.0.119-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dotnet8 Ubuntu:22.04:LTS

    Versions
    • 8.0.102-8.0.2-0ubuntu1~22.04.1
    • 8.0.103-8.0.3-0ubuntu1~22.04.1
    • 8.0.103-8.0.3-0ubuntu1~22.04.2
    • 8.0.105-8.0.5-0ubuntu1~22.04.1
    • 8.0.107-8.0.7-0ubuntu1~22.04.1
    • 8.0.108-8.0.8-0ubuntu1~22.04.1
    • 8.0.110-8.0.10-0ubuntu1~22.04.1
    • 8.0.111-8.0.11-0ubuntu1~22.04.1
    • 8.0.112-8.0.12-0ubuntu1~22.04.1
    • 8.0.114-8.0.14-0ubuntu1~22.04.1
    • 8.0.115-8.0.15-0ubuntu1~22.04.1
    • 8.0.116-8.0.16-0ubuntu1~22.04.1
    • 8.0.117-8.0.17-0ubuntu1~22.04.1
    • 8.0.118-8.0.18-0ubuntu1~22.04.1
    • 8.0.119-8.0.19-0ubuntu1~22.04.1
    • 8.0.120-8.0.20-0ubuntu1~22.04.1
    • 8.0.121-8.0.21-0ubuntu1~22.04.1
    • 8.0.122-8.0.22-0ubuntu1~22.04.1
    • 8.0.123-8.0.23-0ubuntu1~22.04.1
    • 8.0.124-8.0.24-0ubuntu1~22.04.1
    • 8.0.125-8.0.25-0ubuntu1~22.04.1
    • 8.0.126-8.0.26-0ubuntu1~22.04.1
    • 8.0.127-8.0.27-0ubuntu1~22.04.1
    • 8.0.128-8.0.28-0ubuntu1~22.04.1
    Affected ranges
    • ECOSYSTEM: < 8.0.129-8.0.29-0ubuntu1~22.04.1

    Update to 8.0.129-8.0.29-0ubuntu1~22.04.1

  • dotnet10 Ubuntu:24.04:LTS

    Versions
    • 10.0.100-10.0.0-0ubuntu1~24.04.1
    • 10.0.101-10.0.1-0ubuntu1~24.04.2
    • 10.0.103-10.0.3-0ubuntu1~24.04.1
    • 10.0.104-10.0.4-0ubuntu1~24.04.1
    • 10.0.105-10.0.5-0ubuntu1~24.04.1
    • 10.0.106-10.0.6-0ubuntu1~24.04.1
    • 10.0.107-10.0.7-0ubuntu1~24.04.1
    • 10.0.108-10.0.8-0ubuntu1~24.04.1
    • 10.0.109-10.0.9-0ubuntu1~24.04.1
    Affected ranges
    • ECOSYSTEM: < 10.0.110-10.0.10-0ubuntu1~24.04.1

    Update to 10.0.110-10.0.10-0ubuntu1~24.04.1

  • dotnet8 Ubuntu:24.04:LTS

    Versions
    • 8.0.100-8.0.0~rc1-0ubuntu1
    • 8.0.100-8.0.0~rc2-0ubuntu1
    • 8.0.100-8.0.0~rc2-0ubuntu2
    • 8.0.100-8.0.0-0ubuntu1
    • 8.0.100-8.0.0-0ubuntu2
    • 8.0.101-8.0.1-0ubuntu1
    • 8.0.101-8.0.1-0ubuntu2
    • 8.0.102-8.0.2-0ubuntu1
    • 8.0.103-8.0.3-0ubuntu2
    • 8.0.103-8.0.3-0ubuntu3
    • 8.0.104-8.0.4-0ubuntu1
    • 8.0.105-8.0.5-0ubuntu1~24.04.1
    • 8.0.107-8.0.7-0ubuntu1~24.04.1
    • 8.0.108-8.0.8-0ubuntu1~24.04.1
    • 8.0.108-8.0.8-0ubuntu1~24.04.2
    • 8.0.110-8.0.10-0ubuntu1~24.04.1
    • 8.0.111-8.0.11-0ubuntu1~24.04.1
    • 8.0.112-8.0.12-0ubuntu1~24.04.1
    • 8.0.114-8.0.14-0ubuntu1~24.04.1
    • 8.0.115-8.0.15-0ubuntu1~24.04.1
    • 8.0.116-8.0.16-0ubuntu1~24.04.1
    • 8.0.117-8.0.17-0ubuntu1~24.04.1
    • 8.0.118-8.0.18-0ubuntu1~24.04.1
    • 8.0.119-8.0.19-0ubuntu1~24.04.1
    • 8.0.120-8.0.20-0ubuntu1~24.04.1
    • 8.0.121-8.0.21-0ubuntu1~24.04.1
    • 8.0.122-8.0.22-0ubuntu1~24.04.1
    • 8.0.123-8.0.23-0ubuntu1~24.04.1
    • 8.0.124-8.0.24-0ubuntu1~24.04.1
    • 8.0.125-8.0.25-0ubuntu1~24.04.1
    • 8.0.126-8.0.26-0ubuntu1~24.04.1
    • 8.0.127-8.0.27-0ubuntu1~24.04.1
    • 8.0.128-8.0.28-0ubuntu1~24.04.1
    Affected ranges
    • ECOSYSTEM: < 8.0.129-8.0.29-0ubuntu1~24.04.1

    Update to 8.0.129-8.0.29-0ubuntu1~24.04.1

  • dotnet10 Ubuntu:26.04:LTS

    Versions
    • 10.0.100-10.0.0~rc1-0ubuntu1
    • 10.0.100-10.0.0~rc2-0ubuntu1
    • 10.0.100-10.0.0-0ubuntu1
    • 10.0.100-10.0.0-0ubuntu2
    • 10.0.101-10.0.1-0ubuntu1
    • 10.0.101-10.0.1-0ubuntu2
    • 10.0.101-10.0.1-0ubuntu3
    • 10.0.102-10.0.2-0ubuntu1
    • 10.0.103-10.0.3-0ubuntu1
    • 10.0.104-10.0.4-0ubuntu1
    • 10.0.105-10.0.5-0ubuntu1
    • 10.0.107-10.0.7-0ubuntu1~26.04.1
    • 10.0.108-10.0.8-0ubuntu1~26.04.1
    • 10.0.109-10.0.9-0ubuntu1~26.04.1
    Affected ranges
    • ECOSYSTEM: < 10.0.110-10.0.10-0ubuntu1~26.04.1

    Update to 10.0.110-10.0.10-0ubuntu1~26.04.1

Original sources

Check your server →