Skip to content
Patch Next
Sign inAdd to your agent

← Actionable
High, CVSS 7.5amended

Microsoft Security Advisory CVE-2026-120006 - Aspire Elevation of Privilege Vulnerability

CVE-2026-120006GHSA-f7vh-h5g3-7jrh

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (aspire.hosting.apphost 13.6.5; aspire.hosting 13.6.5), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Add to your agent

Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
7.5 · CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in Aspire. This advisory provides guidance on updating affected applications and components. Disclosure of an Aspire Dashboard authentication cookie to a linked service can allow an attacker-controlled container to replay the authenticated session and execute code as the host developer.

Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/503

CVSS Details - Version: 3.1 - Severity: High - Score: 7.5 - Vector: `CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H` - Weakness: CWE-201 (Insertion of Sensitive Information Into Sent Data)

Affected Platforms - Platforms: macOS - Architectures: x64, Arm64

Affected Packages

Standalone Aspire Package | Affected version | Patched version --- | --- | --- Aspire.Hosting.AppHost | How do I know…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from osv record GHSA-f7vh-h5g3-7jrh

  2. Revision 1 · created ·

    Published from ghsa record GHSA-f7vh-h5g3-7jrh

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2026-120006

Advisory: Microsoft Security Advisory CVE-2026-120006 - Aspire Elevation of Privilege Vulnerability
IDs: CVE-2026-120006, GHSA-f7vh-h5g3-7jrh
Record: https://patchnext.com/advisories/cve-2026-120006 (revision 2, source checked 11 Nov 2026, 07:45 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: aspire.hosting.apphost 13.6.5; aspire.hosting 13.6.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- NuGet aspire.hosting.apphost: affected < 13.6.5; fixed in 13.6.5
- NuGet aspire.hosting: affected < 13.6.5; fixed in 13.6.5

## Suggested inspection (read-only)
- NuGet aspire.hosting.apphost: check the installed version with your package manager.
- NuGet aspire.hosting: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on aspire.hosting.apphost, aspire.hosting.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-f7vh-h5g3-7jrh (GitHub-reviewed advisory GHSA-f7vh-h5g3-7jrh lists affected ranges: NuGet aspire.hosting.apphost >=0 =0 <13.6.5)
- Verified: https://osv.dev/vulnerability/GHSA-f7vh-h5g3-7jrh (OSV record GHSA-f7vh-h5g3-7jrh lists affected ranges: NuGet aspire.hosting.apphost >=0 =0 <13.6.5 (fixed))

Commands are suggestions: review each one before running it.

Loading voting…