CVE-2026-11719
Auth bypass: admin tools via old MCP protocol version
Is CVE-2026-11719 being exploited?
Not confirmed. CVE-2026-11719 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.14% probability of exploitation in the next 30 days.
How severe is CVE-2026-11719?
CVE-2026-11719 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-11719?
Yes. A fix has been recorded for CVE-2026-11719. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-11719 affect?
CVE-2026-11719 affects MCP Toolbox for Databases (older protocol handlers: 2025-06-18, 2025-03-26, 2024-11-05). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-11719?
Apply latest patch; disable older protocol handlers.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated low-priv user can escalate to admin by using older protocol versions or omitting the header, bypassing per-tool scope.
Patch when possible
- affected1.3.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.