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CVE PROGRAM SOURCE RECORD4.7 Medium

CVE-2026-22561

Uncontrolled search path elements in Anthropic Claude for Windows installer (Claude Setup.exe) versions prior to 1.1.3363 allow local privilege escalation via DLL search-order hija

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Status
Published
Published
Updated
Assigning organization
hackerone

Description

Uncontrolled search path elements in Anthropic Claude for Windows installer (Claude Setup.exe) versions prior to 1.1.3363 allow local privilege escalation via DLL search-order hijacking. The installer loads DLLs (e.g., profapi.dll) from its own directory after UAC elevation, enabling arbitrary code execution if a malicious DLL is planted alongside the installer.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Anthropic Claude Desktop - Windows

Default version status: unaffected

  • 0 to < 1.1.3363affected

References