The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side.

Technical analysis

Mechanism and impact are interpreted from ingested advisories — not independent exploit research.

• CWE classification

  Improper Privilege Management · Link Following

• Prerequisites and impact

  Follow the original vendor advisory for access prerequisites and impact. This catalog does not invent exploit conditions.

How to fix CVE-2026-44470

• Recommended remediation

  A patch or advisory reference is linked. Open the original publisher for availability by product version.

• Official advisories

  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov

What to do

Three reads of the same public record: the decision, the versions on file, and the signals. Confirm the vendor advisory before you patch. This page does not publish exploit steps.

Related intelligence

• Exploitation evidence

  Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.

• Safe detection guidance

  Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. May 13, 2026 · NIST NVD

   Detected

   The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. Prior to 1.3834.0, the CoworkVMService component in Claude Desktop for Windows ran as SYSTEM and did not validate whether the VM bundle directory was a real directory or an NTFS directory junction before creating files within it. A local non-elevated user could replace the user

2. Jun 17, 2026 · NIST NVD

   Updated

   The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. Prior to 1.3834.0, the CoworkVMService component in Claude Desktop for Windows ran as SYSTEM and did not validate whether the VM bundle directory was a real directory or an NTFS directory junction before creating files within it. A local non-elevated user could replace the user

Affected versions

Enter an installed version to get a verified affected / not-affected result against the ranges below.

• cpe anthropic/claude desktopversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-44470

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-44470

  30-day exploitation probability 0.2%

  first.org
• NIST NVDVulnerability recordCVE-2026-44470

  The Claude Desktop app gives you Claude Code with a graphical interface built for running multiple sessions side by side. Prior to 1.3834.0, the CoworkVMService component in Claude Desktop for Windows ran as SYSTEM and did not validate whether the VM bundle directory was a real d

  nvd.nist.gov

References

• Vendor Advisory · github.com

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.