CVE-2026-24052 | BDVDB-2026-313597 Detail

Description#

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-02-03Record published in the CVE List.
2. Version 22026-02-04Most recent update recorded in the CVE List.