Security Advisory

CVE-2026-22561

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-03-31 15:30:38

Last updated 2026-05-10 13:58:31

Assigner hackerone

CVSS score 4.7

State PUBLISHED

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.

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