Vulnerability DatabaseCVE-2026-120778
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CVE-2026-120778
Published:November 10, 2026
Updated:November 15, 2026
Creation of temporary file in directory with insecure permissions in .NET Aspire allows an authorized attacker to elevate privileges locally.
Affected Packages
https://github.com/microsoft/aspire.git (GITHUB):
Affected version(s) >=v13.2.0 <v13.6.5
Fix Suggestion:
Update to version v13.6.5
@microsoft/aspire-cli-osx-arm64 (NPM):
Affected version(s) >=13.4.2 <13.6.5
Fix Suggestion:
Update to version 13.6.5
@microsoft/aspire-cli-linux-arm64 (NPM):
Affected version(s) >=13.4.2 <13.6.5
Fix Suggestion:
Update to version 13.6.5
@microsoft/aspire-cli-osx-x64 (NPM):
Affected version(s) >=13.4.2 <13.6.5
Fix Suggestion:
Update to version 13.6.5
@microsoft/aspire-cli-linux-musl-x64 (NPM):
Affected version(s) >=13.4.2 <13.6.5
Fix Suggestion:
Update to version 13.6.5
@microsoft/aspire-cli-linux-x64 (NPM):
Affected version(s) >=13.4.2 <13.6.5
Fix Suggestion:
Update to version 13.6.5
@microsoft/aspire-cli (NPM):
Affected version(s) >=13.4.2 <13.6.5
Fix Suggestion:
Update to version 13.6.5
aspire.cli (NUGET):
Affected version(s) >=13.2.0 <13.6.5
Fix Suggestion:
Update to version 13.6.5
aspire.cli.osx-x64 (NUGET):
Affected version(s) >=13.3.0 <13.6.5
Fix Suggestion:
Update to version 13.6.5
aspire.cli.linux-musl-x64 (NUGET):
Affected version(s) >=13.3.0 <13.6.5
Fix Suggestion:
Update to version 13.6.5
aspire.cli.linux-x64 (NUGET):
Affected version(s) >=13.3.0 <13.6.5
Fix Suggestion:
Update to version 13.6.5
aspire.cli.osx-arm64 (NUGET):
Affected version(s) >=13.3.0 <13.6.5
Fix Suggestion:
Update to version 13.6.5
aspire.cli.linux-arm64 (NUGET):
Affected version(s) >=13.3.0 <13.6.5
Fix Suggestion:
Update to version 13.6.5
Related Resources (9)
https://nvd.nist.gov/vuln/detail/CVE-2026-120778
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-120778
https://github.com/microsoft/aspire/issues/22101
https://github.com/microsoft/aspire/releases/tag/v13.6.5
https://github.com/microsoft/aspire/pull/22071
https://github.com/microsoft/aspire
https://github.com/microsoft/aspire/commit/1ecd7cc70b5a5a5b8571fe3af69faa1646b8de47
https://github.com/dotnet/announcements/issues/519
https://github.com/microsoft/aspire/security/advisories/GHSA-m63f-xhvm-6mv5
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CVSS v4
Base Score:
7
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
UNPROVEN
Weakness Type (CWE)
Creation of Temporary File in Directory with Insecure Permissions
CWE-379
EPSS
Base Score:
0.44