CVE-2026-120778 · Runtime
NO FIX YET
A temporary file is created in a directory with insecure permissions in .NET Aspire. An authorized local attacker can use this to elevate privileges on the machine.
first public Nov 10, 2026 · 1 source
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Affects machines where .NET Aspire runs and where more than one local account can write to the temporary directory it uses. The sources do not name the exact directory or the affected versions. Teams that only run Aspire on single-user machines or in isolated CI runners are likely lower risk, but the sources do not confirm this.
Not affected if single-user-machine
Who cares aspire, dotnet, linux, windows
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Creation of temporary file in directory with insecure permissions in .NET Aspire allows an authorized attacker to elevate privileges locally.
This page as .md · .json · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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