{"cve":"CVE-2026-24052","nvd":{"published":"2026-02-03T21:16:13.073","modified":"2026-06-17T10:22:31.613","status":"Analyzed","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_v4":{"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","score":7.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","score":7.4},"cwes":["CWE-601"],"references":["https://github.com/anthropics/claude-code/security/advisories/GHSA-vhw5-3g5m-8ggf"],"products":["anthropic:claude_code"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2026-24052","score":0.00432,"percentile":0.37573,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vhw5-3g5m-8ggf","url":"https://osv.dev/vulnerability/GHSA-vhw5-3g5m-8ggf","summary":"Claude Code has a Domain Validation Bypass which Allows Automatic Requests to Attacker-Controlled Domains","modified":"2026-02-03T22:34:25.409039Z","packages":[{"ecosystem":"npm","name":"@anthropic-ai/claude-code","purl":"pkg:npm/%40anthropic-ai/claude-code","ranges":["<1.0.111"],"fixed":["1.0.111"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}