CVE-2026-14540
- Source
- https://cve.org/CVERecord?id=CVE-2026-14540
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14540.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-14540
- Published
- 2026-07-31T01:46:54.942Z
- Modified
- 2026-07-31T11:45:41.728143487Z
- Severity
-
- 8.0 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U CVSS Calculator
- Summary
- Server-Side Request Forgery via Unrestricted HTTP Redirection in MCP Toolbox
- Details
-
A Server-Side Request Forgery (SSRF) vulnerability exists in the generic HTTP source and tool components of Google mcp-toolbox versions 0.3.0 through 1.4.0. While the toolbox implements baseline input sanitization for user-controlled parameters, the underlying HTTP client (internal/sources/http/http.go) fails to safely regulate request redirection boundaries. Specifically, the client is initialized without a restrictive CheckRedirect policy hook and lacks target IP validation. An attacker or a malicious data-driven prompt can supply a crafted path parameter that triggers an open redirect or a direct destination swap on the target backend, coercing the mcp-toolbox into blindly following the redirection and making unauthorized requests to internal or arbitrary external endpoints.
- Database specific
{ "cwe_ids": [ "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14540.json", "cna_assigner": "Google" }- References