Is CVE-2026-24052 actively exploited?

CVE-2026-24052 has no public evidence of in-the-wild exploitation as of 2026-02-06.

What is the CVSS score for CVE-2026-24052?

CVE-2026-24052 has a CVSS score of 7.1 (HIGH severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-24052?

Patch guidance is available from anthropic security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-24052.

Which products are affected by CVE-2026-24052?

1 product: anthropic claude code.

Fix CVE-2026-24052 - HIGH anthropic claude code

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.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: passive
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-601

Metadata

Primary Vendor: ANTHROPIC
Published: 2/3/2026
Last Modified: 2/6/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

anthropic : claude_code

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-24052. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-24052

View on NIST NVD

CVE-2026-24052 vulnerability