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.

INFO

Published Date :

2026-02-03T20:49:41.997Z

Last Modified :

2026-02-04T20:00:11.786Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-24052 vulnerability.

Vendors Products
Anthropic
  • Claude Code
Anthropics
  • Claude Code
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-24052.

URL Resource
https://github.com/anthropics/claude-code/security/advisories/GHSA-vhw5-3g5m-8ggf cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
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Privileges Required
User Interaction
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SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact