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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusPublished → DeferredNVD modified 2026-10-23 19:57
- StatusReceived → PublishedNVD modified 2026-10-23 13:03
- StatusPublished → ReceivedNVD modified 2026-10-23 13:17
- CVSS6.3 (v4.0, 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) → 6.3 (v4.0, 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)NVD modified 2026-10-23 13:17
- First seenCVSS 6.3 · agentfrontNVD modified 2026-10-23 13:03
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/agentfront/mcp-from-openapi/commit/47fb7a655de33958b0c923490ab244343eb5fc44
- https://github.com/agentfront/mcp-from-openapi/pull/42
- https://github.com/agentfront/mcp-from-openapi/releases/tag/v2.9.0
- https://github.com/agentfront/mcp-from-openapi/security/advisories/GHSA-ff5q-5r4v-fw4v
- https://www.vulncheck.com/advisories/mcp-from-openapi-2.2.0-before-2.9.0-ssrf-blockedhosts-bypass-via-trailing-dot-hostname