CVE-2026-82270: Server-Side Request Forgery (SSRF) in Portkey-AI gateway
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.
CVSS v4.0
Score 8.7high
Affected software
Portkey-AI
gateway
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-82270 is a server-side request forgery vulnerability affecting Portkey AI Gateway versions from 1.14.0 up to and including 1.15.2. The vulnerability exists because the /v1/proxy/* route does not implement the requestValidator middleware, enabling attackers to set the x-portkey-custom-host header to internal network addresses. This allows attackers to forward requests containing Authorization headers to internal services, which can result in the exfiltration of sensitive provider API keys.
Potential Impact
An attacker can exploit this SSRF vulnerability to send unauthorized requests to internal services within the network, potentially accessing sensitive information such as provider API keys. This could lead to unauthorized access or data leakage within the affected environment. The CVSS v4.0 score is 8.7 (high severity), indicating a significant risk if exploited.
Mitigation Recommendations
No official patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the /v1/proxy/* route and monitor for suspicious usage of the x-portkey-custom-host header. Implement network-level controls to limit internal service exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-28T11:12:38.463Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a91e413acd9273b4942e8d4
Added to database: 08/28/2026, 19:40:03 UTC
Last enriched: 09/25/2026, 02:43:27 UTC
Last updated: 10/12/2026, 18:48:23 UTC
Views: 52
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