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3 vulnerabilities found for mcp-from-openapi by agentfront

CVE-2026-115751 (GCVE-0-2026-115751)
Vulnerability from cvelistv5
Published
2026-10-23 13:03
Modified
2026-10-29 17:42
Severity ?
6.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-184 - Incomplete List of Disallowed Inputs
Summary
Agentfront mcp-from-openapi from 2.2.0 before 2.9.0 contains a server-side request forgery vulnerability that allows attackers to bypass the ssrf.blockedHosts denylist using trailing-dot hostnames. Attackers who control an OpenAPI spec URL or redirect target can append a root dot to a blocked hostname to fetch content from operator-blocked hosts.
References
Impacted products
Vendor Product Version
agentfront mcp-from-openapi Version: 2.2.0   ≤
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CVE-2026-115750 (GCVE-0-2026-115750)
Vulnerability from cvelistv5
Published
2026-10-23 13:03
Modified
2026-11-04 20:36
Severity ?
6.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-522 - Insufficiently Protected Credentials
Summary
mcp-from-openapi from 2.5.0 before 2.9.0 contains a credential exposure vulnerability that allows attackers to capture Authorization and Cookie headers because safeFetch() forwards them on cross-origin redirects. Attackers controlling a spec host or abusing an open redirect can redirect fromURL() spec requests to their own origin to steal bearer tokens or cookies.
References
Impacted products
Vendor Product Version
agentfront mcp-from-openapi Version: 2.5.0   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2026-59973 (GCVE-0-2026-59973)
Vulnerability from cvelistv5
Published
2026-09-15 15:13
Modified
2026-09-16 16:06
Severity ?
8.5 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
FrontMCP is a TypeScript-first framework for the Model Context Protocol (MCP). From mcp-from-openapi 2.3.0 until 2.5.0 and from frontmcp and @frontmcp/adapters 1.2.1 until 1.5.0, libs/adapters/src/openapi/openapi.adapter.ts loadOpenAPISpec() forwards untrusted OpenAPI url and spec inputs and loadOptions.refResolution to OpenAPIToolGenerator.fromURL() and OpenAPIToolGenerator.fromJSON(). The external $ref guard checks parsed hostname strings without resolving addresses, pinning validated addresses, revalidating redirect targets, or normalizing IPv4-mapped IPv6. An authenticated user who can import or configure an OpenAPI specification in a hosted or multi-user deployment can use DNS-to-loopback resolution, redirect-to-loopback behavior, or IPv4-mapped IPv6 loopback forms to cause backend-origin requests to internal services. This can expose internal administrative APIs, metadata-like services, and other private network endpoints. The practical impact is lower when only a trusted local administrator can configure OpenAPI specs, and disabling external reference protocols prevents the external $ref request. This issue is fixed in mcp-from-openapi 2.5.0 and frontmcp and @frontmcp/adapters 1.5.0.
References
Impacted products
Vendor Product Version
agentfront frontmcp Version: < 1.5.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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    "cveId": "CVE-2026-59973",
    "datePublished": "2026-09-15T15:13:40.053Z",
    "dateReserved": "2026-07-07T19:41:00.004Z",
    "dateUpdated": "2026-09-16T16:06:53.148Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}