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Claude Code has a Domain Validation Bypass which Allows Automatic Requests to Attacker-Controlled Domains

🗓️ 03 Feb 2026 19:15:59Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 3 Views

Claude Code had a domain validation bypass via weak web address checks enabling auto requests to attacker domains and data exfiltration risk.

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03 Feb 2026 22:15Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.17.4
CVSS 47.1
EPSS0.00015
SSVC
3