CVE-2026-115751
mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname
- State
- Published
- Severity
- 6.3 Medium
- Published
- Oct 23, 2026
- Updated
- Oct 29, 2026
- Reserved
- Oct 23, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 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 | VulnCheck |
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-184 Incomplete List of Disallowed Inputs
Affected Products
| Product | Versions |
|---|---|
mcp-from-openapiagentfront |
|
References
- GitHub Security Advisory (GHSA-ff5q-5r4v-fw4v)vendor-advisory
- https://github.com/agentfront/mcp-from-openapi/pull/42issue-trackingpatch
- https://github.com/agentfront/mcp-from-openapi/commit/47fb7a655de33958b0c923490ab244343eb5fc44patch
- mcp-from-openapi v2.9.0 Release Notesrelease-notes
- VulnCheck Advisory: mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostnamethird-party-advisory
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