Symlink Attack Affecting microsoft.netcore.app.runtime.linux-musl-arm64 package, versions [8.0.0,8.0.32)[9.0.0,9.0.21)[10.0.0,10.0.13)[11.0.0-preview.1,11.0.0-rc.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-DOTNET-MICROSOFTNETCOREAPPRUNTIMELINUXMUSLARM64-20930991
  • published14 Oct 2026
  • disclosed13 Oct 2026
  • creditNguyễn Văn Minh Đức

Introduced: 13 Oct 2026

NewCVE-2026-96231  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Microsoft.NETCore.App.Runtime.linux-musl-arm64 to version 8.0.32, 9.0.21, 10.0.13, 11.0.0-rc.2 or higher.

Overview

Affected versions of this package are vulnerable to Symlink Attack via the handling of Unix named-mutex and shared-memory paths in global directories. An attacker can gain elevated privileges, truncate or overwrite files, or widen directory permissions by exploiting symlink races or manipulating directory permissions.

CVSS Base Scores

version 4.0
version 3.1