Vulnerability Details CVE-2025-66405
Portkey.ai Gateway is a blazing fast AI Gateway with integrated guardrails. Prior to 1.14.0, the gateway determined the destination baseURL by prioritizing the value in the x-portkey-custom-host request header. The proxy route then appends the client-specified path to perform an external fetch. This can be maliciously used by users for SSRF attacks. This vulnerability is fixed in 1.14.0.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 17.4%
CVSS Severity
CVSS v3 Score 9.8
References
Products affected by CVE-2025-66405
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cpe:2.3:a:portkey.ai:gateway:*