{"id":"CVE-2026-85666","summary":"ogx 1.3.1 Server-Side Request Forgery via MCP tool server_url","details":"OGX (formerly Llama Stack, affected at commit fbe8e0f) contains an unauthenticated server-side request forgery vulnerability in the OpenAI-compatible POST /v1/responses endpoint. MCP tool definitions accept a server_url parameter (along with headers and authorization values) that is fetched server-side without destination validation; the existing validate_url_not_private() guard used for other URL inputs is not applied to server_url. On the default starter configuration, which runs without authentication, a remote unauthenticated attacker can cause the server to open connections to arbitrary internal addresses (including cloud metadata endpoints such as http://169.254.169.254/) and forward attacker-supplied headers and bearer tokens to those destinations.","modified":"2026-09-06T03:47:20.075303388Z","published":"2026-09-04T14:32:22.307Z","database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85666.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85666.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85666"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ogx-1.3.1-server-side-request-forgery-via-mcp-tool-server-url"},{"type":"REPORT","url":"https://github.com/ogx-ai/ogx/issues/6287"},{"type":"PACKAGE","url":"https://github.com/ogx-ai/ogx"},{"type":"ARTICLE","url":"https://github.com/ogx-ai/ogx/blob/v1.3.1/src/ogx/providers/utils/tools/mcp.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ogx-ai/ogx","events":[{"introduced":"0"},{"last_affected":"c61c3a2c2bc410d21ed3fc44228c3a976b0cc7b1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.3.1"}],"source":"AFFECTED_FIELD"}}],"versions":["v1.3.1-dev","v1.2.1-dev","v0.5.5-dev","v0.5.4-dev","v1.1.4-dev","v1.1.3-dev","v1.1.2-dev","v1.1.1-dev","v0.7.3-dev","v1.0.3-dev","v1.0.2-dev","v1.0.1-dev","v0.8.1-dev","v0.7.2-dev","v0.7.1-dev","v0.6.2-dev","v0.6.1-dev","v0.5.3-dev","v0.5.0-dev","v0.2.1","v0.2.0","v0.1.4rc2","v0.1.4rc1","v0.1.3","v0.1.3rc3","v0.1.3rc2","v0.1.3rc1","v0.1.2","v0.1.2rc4","v0.1.2rc3","v0.1.2rc1","v0.1.1","v0.1.1rc4","v0.1.1rc3","v0.1.0","v0.1.0rc12","v0.1.0rc11","v0.0.63","v0.0.62","v0.0.61","v0.0.55","v0.0.54","stable","v0.0.53"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85666.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}