CVE-2026-11719
- Source
- https://cve.org/CVERecord?id=CVE-2026-11719
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-11719.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-11719
- Aliases
- Downstream
- Related
- Published
- 2026-06-18T11:55:03.666Z
- Modified
- 2026-08-19T03:55:35.482169208Z
- Severity
-
- 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- [none]
- Details
-
An authenticated authorization bypass vulnerability exists in MCP Toolbox for Databases due to missing scope enforcement across older protocol handlers.
While the 2025-11-25 protocol version handler correctly enforces per-tool restrictions defined by scopesRequired, older supported protocol versions (2025-06-18, 2025-03-26, and 2024-11-05) omit this check. An authenticated client with low-privilege tokens (e.g., read) can bypass the intended per-tool scope restrictions and execute high-privilege tools (e.g., admin) simply by specifying an older protocol version in the MCP-Protocol-Version header, or by omitting the header entirely (which causes the server to default to the vulnerable 2024-11-05 handler).
- Database specific
{ "cna_assigner": "Google", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/11xxx/CVE-2026-11719.json", "cwe_ids": [ "CWE-862" ] }- References
Affected packages
Git / github.com/googleapis/mcp-toolbox
Affected ranges
- Type
- GIT
- Repo
- https://github.com/googleapis/mcp-toolbox
- Events
-
IntroducedLast affected
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "1.3.0" }, { "last_affected": "1.3.0" } ], "source": [ "AFFECTED_FIELD", "CPE_STRING" ], "cpe": "cpe:2.3:a:google:mcp_toolbox_for_databases:1.3.0:*:*:*:*:*:*:*" }