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Vulnerability · Published Jun 1, 2026 · Assigned by VulDB

CVE-2026-10280horizon921 mcpilot MCP API Call Endpoint route.ts server-side request forgery

High 7.3

In plain English

A high-severity server-side request forgery in mcpilot from horizon921. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.3%top 76.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in horizon921 mcpilot 0.1.0. The impacted element is an unknown function of the file client/src/app/api/mcp/call/route.ts of the component MCP API Call Endpoint. The manipulation of the argument serverBaseUrl results in server-side request forgery. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected products (as reported)

VendorProductVersions
horizon921 mcpilot 0.1.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References