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CVE-2026-118740VulnerabilityPublished

Aspire.Dashboard.Sdk.linux x64: Microsoft Security Advisory CVE-2026-118740 - Aspire Security Feature Bypass

Affects Aspire.Dashboard.Sdk.linux-x64Source GCVE Database

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Authoritative record:CVE-2026-118740· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical : upgrade to 13.6.5 as a priority.

Data as of 12 Nov 2026, 18:34 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (microsoft)CVSS 3.19.1
Patch
Available – fixed in 13.6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.

What to do

Upgrade Aspire.Dashboard.Sdk.linux-x64 and Aspire.Dashboard.Sdk.linux-arm64 and Aspire.Dashboard.Sdk.linux-musl-x64 and Aspire.Dashboard.Sdk.osx-x64 and Aspire.Dashboard.Sdk.osx-arm64 and Aspire.Dashboard.Sdk.win-x64 and Aspire.Dashboard.Sdk.win-arm64 to 13.6.5.

Affected software

ProductAffectedFixed in
NuGetAspire.Dashboard.Sdk.linux-x64Affected
  • <13.6.5
Fixed in
  • 13.6.5
NuGetAspire.Dashboard.Sdk.linux-arm64Affected
  • <13.6.5
Fixed in
  • 13.6.5
NuGetAspire.Dashboard.Sdk.linux-musl-x64Affected
  • <13.6.5
Fixed in
  • 13.6.5
NuGetAspire.Dashboard.Sdk.osx-x64Affected
  • <13.6.5
Fixed in
  • 13.6.5
NuGetAspire.Dashboard.Sdk.osx-arm64Affected
  • <13.6.5
Fixed in
  • 13.6.5
NuGetAspire.Dashboard.Sdk.win-x64Affected
  • <13.6.5
Fixed in
  • 13.6.5

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Update Aspire Dashboard and all related SDK packages to version 13.6.5 or later. For container deployments, explicitly set the Dashboard image to 'mcr.microsoft.com/aspire/dashboard:13.6.5' and redeploy containers. For AppHost deployments using Dashboard SDK packages, update Aspire.Hosting.AppHost or Aspire.AppHost.Sdk references to 13.6.5 or later, rebuild, and restart the AppHost. If using CLI-bundled or custom Dashboard paths, update the Dashboard to 13.6.5 or later and restart the AppHost. Updating only package references without updating the Dashboard image or bundle will not mitigate the vulnerability.

Description

A critical security vulnerability (CVE-2026-118740) affects Aspire Dashboard versions prior to 13.6.5. The issue involves an unauthenticated NotFound route that can allow deletion of telemetry data in both standalone and AppHost-hosted deployments. In standalone deployments using browser-token authentication, this vulnerability can also expose the browser token. The vulnerability is identified as CWE-862 and has a CVSS 3.1 score of 9.1 (critical).

References

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