OGX Unauthenticated Server-Side Request Forgery via MCP Tool
OGX (formerly Llama Stack) contains an unauthenticated SSRF vulnerability in the /v1/responses endpoint where MCP tool definitions accept a server_url parameter that is fetched server-side without destination validation, allowing remote attackers to access arbitrary internal addresses including cloud metadata endpoints.
Disclosed 4 September 2026 · Record updated 13 September 2026
Impact
Remote unauthenticated attackers can cause the server to open connections to arbitrary internal addresses and forward attacker-supplied headers and bearer tokens to those destinations, potentially compromising cloud metadata and internal services.
Our coverage
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Sources
- nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-85666
- github.comhttps://github.com/advisories/GHSA-9mg6-c5wp-2g44
