CVE-2026-82270 Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/*

High 8.7 Published Updated

Attackers can exploit SSRF in Portkey AI Gateway to access internal services and exfiltrate API keys via the proxy route.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-82270?

CVE-2026-82270 is a high-severity server-side request forgery vulnerability in Portkey-AI gateway, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-918

Which versions are affected by CVE-2026-82270?

How do I fix CVE-2026-82270?

No fix has been published for CVE-2026-82270 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-82270 being exploited?

There is no known exploitation of CVE-2026-82270 in the wild and no public exploit code.

Sources

Also known as GHSA-rv66-rgwx-xfrj.

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