---
id: "CVE-2026-120792"
page: "https://infrastack.ai/live/CVE-2026-120792"
kind: "vulnerability"
aliases: ["CVE-2026-120792", "GHSA-q6jf-24jf-m3cg"]
title: "Microsoft Security Advisory CVE-2026-120792 - Aspire Information Disclosure Vulnerability"
severity: "high"
cvss: 7.3
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": ".NET Aspire", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "Aspire.Cli", "fixed": ["13.6.5"], "affected": "< 13.6.5 (CNA record lists 13.5.4 as affected; lower bound unclear)", "ecosystem": "vendor"}, {"name": "Aspire.Cli", "fixed": ["13.6.5"], "affected": ">= 13.2.0, < 13.6.5", "ecosystem": "nuget"}, {"name": "Aspire.Cli.linux-x64", "fixed": ["13.6.5"], "affected": ">= 13.3.0, < 13.6.5", "ecosystem": "nuget"}, {"name": "Aspire.Cli.linux-arm64", "fixed": ["13.6.5"], "affected": ">= 13.3.0, < 13.6.5", "ecosystem": "nuget"}, {"name": "Aspire.Cli.linux-musl-x64", "fixed": ["13.6.5"], "affected": ">= 13.3.0, < 13.6.5", "ecosystem": "nuget"}, {"name": "Aspire.Cli.osx-x64", "fixed": ["13.6.5"], "affected": ">= 13.3.0, < 13.6.5", "ecosystem": "nuget"}, {"name": "Aspire.Cli.osx-arm64", "fixed": ["13.6.5"], "affected": ">= 13.3.0, < 13.6.5", "ecosystem": "nuget"}, {"name": "@microsoft/aspire-cli", "fixed": ["13.6.5"], "affected": ">= 13.4.2, < 13.6.5", "ecosystem": "npm"}, {"name": "@microsoft/aspire-cli-linux-x64", "fixed": ["13.6.5"], "affected": ">= 13.4.2, < 13.6.5", "ecosystem": "npm"}, {"name": "@microsoft/aspire-cli-linux-arm64", "fixed": ["13.6.5"], "affected": ">= 13.4.2, < 13.6.5", "ecosystem": "npm"}, {"name": "@microsoft/aspire-cli-linux-musl-x64", "fixed": ["13.6.5"], "affected": ">= 13.4.2, < 13.6.5", "ecosystem": "npm"}, {"name": "@microsoft/aspire-cli-osx-x64", "fixed": ["13.6.5"], "affected": ">= 13.4.2, < 13.6.5", "ecosystem": "npm"}, {"name": "@microsoft/aspire-cli-osx-arm64", "fixed": ["13.6.5"], "affected": ">= 13.4.2, < 13.6.5", "ecosystem": "npm"}]
ecosystems: ["npm", "nuget", "vendor"]
tags: ["aspire", "aspire-cli", "cwe-532", "developers", "dotnet", "linux", "local", "macos", "npm", "nuget", "package", "runtime"]
not_affected_if: ["single-user-machine", "version-13.6.5-or-later", "windows"]
published_at: "2026-11-10T19:20:28+00:00"
first_seen_at: "2026-11-10T19:25:08+00:00"
updated_at: "2026-11-11T00:36:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120792", "first_seen_at": "2026-11-10T19:25:08+00:00"}, {"source": "analyst", "url": "https://app.opencve.io/cve/CVE-2026-120792", "first_seen_at": "2026-11-10T21:47:13+00:00", "cites": ["https://app.opencve.io/cve/CVE-2026-120792", "https://github.com/microsoft/aspire/releases/tag/v13.6.5"]}, {"source": "ghsa", "url": "https://github.com/advisories/GHSA-q6jf-24jf-m3cg", "first_seen_at": "2026-11-11T00:35:04+00:00"}]
exploit_sources: []
---

# Microsoft Security Advisory CVE-2026-120792 - Aspire Information Disclosure Vulnerability

Link for people: https://infrastack.ai/live/CVE-2026-120792 (this .md is for agents)

The Aspire CLI's deprecated MCP configuration scanner writes diagnostic temporary files to a fixed path in a shared temporary directory, and those files can include configuration content. A local user on Linux or macOS can read that content and obtain sensitive configuration information.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:.NET Aspire affected range not listed fixed no fixed version listed
- vendor:Aspire.Cli affected < 13.6.5 (CNA record lists 13.5.4 as affected; lower bound unclear) fixed 13.6.5
- nuget:Aspire.Cli affected >= 13.2.0, < 13.6.5 fixed 13.6.5
- nuget:Aspire.Cli.linux-x64 affected >= 13.3.0, < 13.6.5 fixed 13.6.5
- nuget:Aspire.Cli.linux-arm64 affected >= 13.3.0, < 13.6.5 fixed 13.6.5
- nuget:Aspire.Cli.linux-musl-x64 affected >= 13.3.0, < 13.6.5 fixed 13.6.5
- nuget:Aspire.Cli.osx-x64 affected >= 13.3.0, < 13.6.5 fixed 13.6.5
- nuget:Aspire.Cli.osx-arm64 affected >= 13.3.0, < 13.6.5 fixed 13.6.5
- npm:@microsoft/aspire-cli affected >= 13.4.2, < 13.6.5 fixed 13.6.5
- npm:@microsoft/aspire-cli-linux-x64 affected >= 13.4.2, < 13.6.5 fixed 13.6.5
- npm:@microsoft/aspire-cli-linux-arm64 affected >= 13.4.2, < 13.6.5 fixed 13.6.5
- npm:@microsoft/aspire-cli-linux-musl-x64 affected >= 13.4.2, < 13.6.5 fixed 13.6.5
- npm:@microsoft/aspire-cli-osx-x64 affected >= 13.4.2, < 13.6.5 fixed 13.6.5
- npm:@microsoft/aspire-cli-osx-arm64 affected >= 13.4.2, < 13.6.5 fixed 13.6.5

## How to check

- Run `aspire --version` or check the installed Aspire.Cli NuGet package or @microsoft/aspire-cli npm package version; affected versions are `13.2.0` through `13.6.4`.
- On Linux or macOS, look for diagnostic files in the shared temporary directory after running Aspire CLI agent or MCP initialization commands.

## Fix

- Update Aspire.Cli and the platform-specific packages to `13.6.5` or later.
- Update @microsoft/aspire-cli and its platform dependency to `13.6.5` or later.

## Timeline

- 2026-11-10T19:25:08+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120792
- 2026-11-10T21:47:13+00:00 analyst https://app.opencve.io/cve/CVE-2026-120792 — MSRC page unreadable by tool; affected range from the CNA record via OpenCVE (secondary). Fix 13.6.5 inferred from 'affected < 13.6.5', not verified. Logged data type unknown; nothing marked verified. Re-check MSRC for the advisory text.
- 2026-11-11T00:35:04+00:00 ghsa https://github.com/advisories/GHSA-q6jf-24jf-m3cg

## Documents

- [advisory] Maintainer's advisory: api.github.com https://api.github.com/repos/microsoft/aspire/security-advisories/GHSA-q6jf-24jf-m3cg
- [advisory] Maintainer's advisory: github.com https://github.com/microsoft/aspire/security/advisories/GHSA-q6jf-24jf-m3cg
- [describes] OpenCVE: CVE-2026-120792 (mirrors Microsoft CNA record) https://app.opencve.io/cve/CVE-2026-120792
- [fix] Patch: github.com https://github.com/microsoft/aspire/pull/22071
- [fix] Patch: github.com https://github.com/microsoft/aspire/commit/c408ec5bf44e43203c278990a43aea93145248f3
- [fix] Aspire 13.6.5 release notes https://github.com/microsoft/aspire/releases/tag/v13.6.5

## From the sources

## Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in the Aspire CLI. This advisory provides guidance on updating affected applications and components.

Insecure temporary files used by Aspire CLI can allow a local attacker to obtain sensitive configuration information.

## Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/518

## CVSS Details

- **Version:** 3.1
- **Severity:** High
- **Score:** 7.3
- **Vector:** `CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L`
- **Weakness:** CWE-532 (Insertion of Sensitive Information into Log File)
- **MSRC severity:** Important
- **Impact:** Information Disclosure

## Affected Platforms

- **Platforms:** Linux, macOS
- **Architectures:** x64, Arm64

## <a name="affected-packages"></a>Affected Packages

### Standalone Aspire CLI

Package | Affected version | Patched version
--- | --- | ---
Aspire CLI ([Aspire.Cli](https://www.nuget.org/packages/Aspire.Cli)) | >= 13.2.0, < 13.6.5 | 13.6.5
[Aspire.Cli.linux-x64](https://www.nuget.org/packages/Aspire.Cli.linux-x64) | >= 13.3.0, < 13.6.5 | 13.6.5
[Aspire.Cli.linux-arm64](https://www.nuget.org/packages/Aspire.Cli.linux-arm64) | >= 13.3.0, < 13.6.5 | 13.6.5
[Aspire.Cli.linux-musl-x64](https://www.nuget.org/packages/Aspire.Cli.linux-musl-x64) | >= 13.3.0, < 13.6.5 | 13.6.5
[Aspire.Cli.osx-x64](https://www.nuget.org/packages/Aspire.Cli.osx-x64) | >= 13.3.0, < 13.6.5 | 13.6.5
[Aspire.Cli.osx-arm64](https://www.nuget.org/packages/Aspire.Cli.osx-arm64) | >= 13.3.0, < 13.6.5 | 13.6.5

### Aspire CLI npm packages

Package | Affected version | Patched version
--- | --- | ---
[@microsoft/aspire-cli](https://www.npmjs.com/package/@microsoft/aspire-cli) | >= 13.4.2, < 13.6.5 | 13.6.5
[@microsoft/aspire-cli-linux-x64](https://www.npmjs.com/package/@microsoft/aspire-cli-linux-x64) | >= 13.4.2, < 13.6.5 | 13.6.5
[@microsoft/aspire-cli-linux-arm64](https://www.npmjs.com/package/@microsoft/aspire-cli-linux-arm64) | >= 13.4.2, < 13.6.5 | 13.6.5
[@microsoft/aspire-cli-linux-musl-x64](https://www.npmjs.com/package/@microsoft/aspire-cli-linux-musl-x64) | >= 13.4.2, < 13.6.5 | 13.6.5
[@microsoft/aspire-cli-osx-x64](https://www.npmjs.com/package/@microsoft/aspire-cli-osx-x64) | >= 13.4.2, < 13.6.5 | 13.6.5
[@microsoft/aspire-cli-osx-arm64](https://www.npmjs.com/package/@microsoft/aspire-cli-osx-arm64) | >= 13.4.2, < 13.6.5 | 13.6.5

The affected component is the Aspire CLI's deprecated MCP configuration scanner, which ships in the CLI packages listed above. Its temporary-file diagnostics can include configuration content and use a fixed path in a shared temporary directory.

## Advisory FAQ

### <a name="how-affected"></a>How do I know if I am affected?

The reported scenario involves running Aspire CLI agent or MCP initialization commands on a non-Windows system with a temporary directory shared by multiple users. Versions 13.2.0 through 13.6.4 are affected.

Aspire ships independently of .NET. Installing a .NET runtime or SDK update does not establish that the affected Aspire CLI has been updated.

### <a name="how-fix"></a>How do I fix the issue?

Update the Aspire CLI to version 13.6.5 or later. If installed as a .NET tool, update the Aspire.Cli package. If installed using npm, update @microsoft/aspire-cli to version 13.6.5 or later; its platform-specific dependency must also resolve to version 13.6.5 or later. Otherwise update the CLI through its installation method.

## Other Information

### Reporting Security Issues

If you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).

Security reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.

### Support

You can ask questions about this issue in the [Aspire repository](https://github.com/microsoft/aspire).

### Disclaimer

The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

### External Links

[CVE-2026-120792](https://www.cve.org/CVERecord?id=CVE-2026-120792)

### Acknowledgements

- l8BL with [ENKI WhiteHat](https://enki.co.kr/)
- 71C4

### Revisions

V1.0 (November 10, 2026): Advisory published.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_