CVE-2026-11720
- Source
- https://cve.org/CVERecord?id=CVE-2026-11720
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-11720.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-11720
- Published
- 2026-06-29T17:51:30.077Z
- Modified
- 2026-07-15T01:49:08.909063532Z
- Severity
-
- 9.3 (Critical) 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 CVSS Calculator
- Summary
- Path Traversal in googleapis/mcp-toolbox HTTP Tool URL Builder
- Details
-
A path traversal vulnerability exists in the HTTP tool URL builder of googleapis/mcp-toolbox.
When constructing downstream API requests, the URL builder substitutes user-controlled pathParams into the configured tool path and parses the resulting string as a relative URL. While it checks that the input does not alter the scheme, host, or user info, it relies on ResolveReference for the final URL resolution. Because dot segments (../) are normalized during this resolution step, an attacker can supply path parameters containing directory traversal sequences to escape the operator-configured path scope. This allows the client to coerce the toolbox into making requests to unintended endpoints on the same target host while forwarding the toolbox's configured credentials (e.g., bypassing a restricted path like /api/v1/users/{{.id}} to reach /admin/secrets).
- Database specific
{ "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/11xxx/CVE-2026-11720.json", "cna_assigner": "Google" }- References
Affected packages
Git / github.com/googleapis/mcp-toolbox
Affected ranges
- Type
- GIT
- Repo
- https://github.com/googleapis/mcp-toolbox
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "cpe": "cpe:2.3:a:google:mcp_toolbox_for_databases:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.3.0" } ], "source": [ "AFFECTED_FIELD", "CPE_RANGE" ] }