---
id: CVE-2026-110719
title: >-
  Portkey AI Gateway 1.14.0 through 1.15.2 contains a server-side request
  forgery vulnerability that allows unauthenticated attackers to reach loopback
  and Docker host services because isValidCustomHost trusts localhost-style
  hosts when TR…
summary: >-
  Portkey AI Gateway 1.14.0 through 1.15.2 contains a server-side request
  forgery vulnerability that allows unauthenticated attackers to reach loopback
  and Docker host services because isValidCustomHost trusts localhost-style
  hosts when TR…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-918
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T16:17:44.183'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110719'
references:
  - url: 'https://github.com/Portkey-AI/gateway'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Portkey-AI/gateway/blob/ca7712947ec8c0887803990b746740d36011c697/src/middlewares/requestValidator/index.ts#L289
    label: disclosure@vulncheck.com
  - url: 'https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/BJypv-aiMg'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/portkey-ai-gateway-1.14.0-through-1.15.2-ssrf-via-x-portkey-custom-host-header
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-14T16:40:32.123Z'
---

## Overview

Portkey AI Gateway 1.14.0 through 1.15.2 contains a server-side request forgery vulnerability that allows unauthenticated attackers to reach loopback and Docker host services because isValidCustomHost trusts localhost-style hosts when TRUSTED_CUSTOM_HOSTS is unset. Attackers can send /v1 requests with a crafted x-portkey-custom-host header, such as via the ollama provider, to make the gateway call internal services and return their responses.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.