CVE-2026-111768 in modelcontextprotocol

Prediction

by VulDB Data Team • 10/20/2026

A security flaw has been discovered in <a href="/product/modelcontextprotocol">modelcontextprotocol</a>. This vulnerability affects the function <code>createMcpHandler</code>. The manipulation of the argument <em>maxToolInputElements/maxRequestBodySize</em> results in allocation of resources. It is possible to launch the attack remotely.

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• Moderation: accepted
• Entry: VDB-423031
• CWE: CWE-770 (confirmed)
• CVSS: 5.3 (VulDB)
• EPSS: 0.00000
• KEV: no
• Activities: very low

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-111768
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-111768
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-111768/