{"id":"CVE-2026-115751","aliases":["EUVD-2026-108959","GHSA-ff5q-5r4v-fw4v","GHSA-wfcf-h98w-gp9m"],"status":"published","title":"mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname","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.","severity":{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0025,"percentile":0.16513,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-184","CWE-522"],"published":"2026-10-23T13:03:32.783Z","modified":"2026-11-05T10:30:27Z","products":[{"vendor":"agentfront","product":"mcp-from-openapi"},{"vendor":"frontmcp","product":"mcp-from-openapi"}],"references":[{"url":"https://github.com/agentfront/mcp-from-openapi/security/advisories/GHSA-ff5q-5r4v-fw4v","tags":["vendor-advisory","exploit","advisory"]},{"url":"https://github.com/agentfront/mcp-from-openapi/pull/42","tags":["issue-tracking","patch","fix"]},{"url":"https://github.com/agentfront/mcp-from-openapi/commit/47fb7a655de33958b0c923490ab244343eb5fc44","tags":["patch","fix"]},{"url":"https://github.com/agentfront/mcp-from-openapi/releases/tag/v2.9.0","tags":["release-notes","advisory"]},{"url":"https://www.vulncheck.com/advisories/mcp-from-openapi-2.2.0-before-2.9.0-ssrf-blockedhosts-bypass-via-trailing-dot-hostname","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115751","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wfcf-h98w-gp9m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115750.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115750","tags":["advisory"]},{"url":"https://www.vulncheck.com/advisories/mcp-from-openapi-from-2.5.0-before-2.9.0-credential-leak-via-cross-origin-redirects","tags":["advisory"]},{"url":"https://github.com/agentfront/mcp-from-openapi","tags":["package"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115751.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-115751","title":"mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname","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.","status":"published","published":"2026-10-23T13:03:33.492Z","modified":"2026-10-29T17:42:32.687Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"cna"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T14:20:01.618694Z"}],"euvd":[{"id":"EUVD-2026-108959","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.","status":"published","published":"2026-10-23T13:03:33Z","modified":"2026-10-29T17:42:32Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T16:59:15.391097Z"}],"ghsa":[{"id":"GHSA-wfcf-h98w-gp9m","title":"Agentfront mcp-from-openapi from 2.2.0 before 2.9.0 contains a server-side request forgery...","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.","status":"published","published":"2026-10-23T15:31:30Z","modified":"2026-10-23T15:31:37Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"},{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T15:14:19.493811Z"}],"nvd":[{"id":"CVE-2026-115751","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.","status":"published","published":"2026-10-23T13:17:09.33Z","modified":"2026-10-29T18:17:24.53Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium","assessor":"secondary"},{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T14:13:02.724605Z"}],"osv":[{"id":"CVE-2026-115750","title":"mcp-from-openapi from 2.5.0 before 2.9.0 Credential Leak via Cross-Origin Redirects","description":"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.","status":"published","published":"2026-10-23T13:03:32.783Z","modified":"2026-11-05T21:15:37.979495967Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-522"],"updated_at":"2026-11-05T22:01:21.792402Z"},{"id":"CVE-2026-115751","title":"mcp-from-openapi 2.2.0 before 2.9.0 SSRF blockedHosts Bypass via Trailing-Dot Hostname","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.","status":"published","published":"2026-10-23T13:03:33.492Z","modified":"2026-10-31T02:31:04.068960638Z","cvss":[{"version":"4.0","score":6.3,"vector":"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","level":"medium"}],"cwes":["CWE-184"],"updated_at":"2026-11-02T15:44:56.675758Z"}]}}