Link Following Affecting dotnet-host package, versions <0:9.0.17-1.amzn2023.0.2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.39% (31st percentile)

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  • Snyk IDSNYK-AMZN2023-DOTNETHOST-17414963
  • published23 Jun 2026
  • disclosed9 Jun 2026

Introduced: 9 Jun 2026

CVE-2026-45491  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 dotnet-host to version 0:9.0.17-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1868.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dotnet-host package and not the dotnet-host package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Improper link resolution before file access ('link following') in .NET allows an unauthorized attacker to perform tampering locally.

CVSS Base Scores

version 3.1