{"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","slug":"CVE-2026-96231","body":"## Overview\n\nImproper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-96231)\n\nAffected packages:\n\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.NETCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.NETCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n\nPatched in:\n\n- `Microsoft.NETCore.App.Runtime.linux-arm 8.0.32`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 8.0.32`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 8.0.32`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 8.0.32`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 8.0.32`\n- `Microsoft.NETCore.App.Runtime.linux-x64 8.0.32`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 8.0.32`\n- `Microsoft.NETCore.App.Runtime.osx-x64 8.0.32`\n- `Microsoft.NETCore.App.Runtime.linux-arm 10.0.13`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 10.0.13`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 10.0.13`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 10.0.13`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 10.0.13`\n- `Microsoft.NETCore.App.Runtime.linux-x64 10.0.13`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 10.0.13`\n- `Microsoft.NETCore.App.Runtime.osx-x64 10.0.13`\n- `Microsoft.NETCore.App.Runtime.linux-arm 9.0.21`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 9.0.21`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 9.0.21`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 9.0.21`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 9.0.21`\n- `Microsoft.NETCore.App.Runtime.linux-x64 9.0.21`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 9.0.21`\n- `Microsoft.NETCore.App.Runtime.osx-x64 9.0.21`\n- `Microsoft.NETCore.App.Runtime.linux-arm 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.linux-arm64 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.linux-musl-x64 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.linux-x64 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.osx-arm64 11.0.0-rc.2`\n- `Microsoft.NETCore.App.Runtime.osx-x64 11.0.0-rc.2`\n\nSource: https://github.com/advisories/GHSA-2j93-m82w-73j2","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}