CVSS 4.0
7.1 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-24052
High (7.1) in anthropic claude code. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in @anthropic-ai/claude-code 1.0.111.
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.
Severity
CVSS 3.1
7.4 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
- CWE
- CWE-601
- Published
- Modified
- Record from
- the NVD, synced
Affected
- anthropic:claude_code
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-vhw5-3g5m-8ggf | npm | @anthropic-ai/claude-code | <1.0.111 | 1.0.111 |