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CVE-2026-115751
mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname
Medium6.3EPSS 0.25%
- Published
- Updated
- Reserved
- Assigned by
- VulnCheck
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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulnCheckCNA (assigner) | 4.0 | Medium6.3 | 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 |
| VulnCheckCNA (assigner) | 3.1 | Low3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Deferred | 4.0 | Medium6.3 | 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 |
- EPSS (exploitation in 30 days)
- 0.25% · top 84% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.
Weakness
Affected products
- affected 2.2.0 – < 2.9.0
References (5)
- GitHub Security Advisory (GHSA-ff5q-5r4v-fw4v) (opens in a new tab)vendor-advisoryexploit
- https://github.com/agentfront/mcp-from-openapi/pull/42 (opens in a new tab)issue-trackingpatch
- https://github.com/agentfront/mcp-from-openapi/commit/47fb7a655de33958b0c923490ab244343eb5fc44 (opens in a new tab)patch
- mcp-from-openapi v2.9.0 Release Notes (opens in a new tab)release-notes
- VulnCheck Advisory: mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname (opens in a new tab)third-party-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-115751)Record last updated .