Claude Code is an agentic coding tool. Prior to version 1.0.111, Claude Code contained insufficient URL validation in its trusted domain verification mechanism for WebFetch requests. The application used a startsWith() function to validate trusted domains (e.g., docs.python.org, modelcontextprotocol.io), this could have enabled attackers to register domains like modelcontextprotocol.io.example.com that would pass validation. This could enable automatic requests to attacker-controlled domains without user consent, potentially leading to data exfiltration. This issue has been patched in version 1.0.111.
CVSS
No CVSS.
References
Configurations
No configuration.
History
03 Feb 2026, 21:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-03 21:16
Updated : 2026-02-03 21:16
NVD link : CVE-2026-24052
Mitre link : CVE-2026-24052
CVE.ORG link : CVE-2026-24052
JSON object : View
Products Affected
No product.
CWE
CWE-601
URL Redirection to Untrusted Site ('Open Redirect')
