CVE-2026-82270
Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/*
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 28, 2026
- Updated
- Sep 24, 2026
- Reserved
- Aug 28, 2026
Description
Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/* route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal services and exfiltrate provider API keys.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
gatewayPortkey-AI |
|
References
- GitHub Issue #1718issue-tracking
- https://github.com/Portkey-AI/gatewayproduct
- Vulnerable code: index.tstechnical-description
- VulnCheck Advisory: Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/*third-party-advisory
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