Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-24052

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 12.2%
CVSS Severity
CVSS v3 Score 7.4
Products affected by CVE-2026-24052


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