---
title: "CVE-2026-110719: Portkey AI Gateway - Server Side Request Forgery"
description: "Portkey AI Gateway 1.14.0 through 1.15.2 contains a server-side request forgery caused by isValidCustomHost trusting localhost-style hosts when TRUSTED_CUSTOM_HOSTS is unset, letting unauthenticated attackers access internal loopback and Docker host services via crafted x-portkey-custom-host headers."
url: https://panop.io/threat-heartbeat/CVE-2026-110719/
---

# CVE-2026-110719 Portkey AI Gateway - Server Side Request Forgery

Portkey AI Gateway 1.14.0 through 1.15.2 contains a server-side request forgery caused by isValidCustomHost trusting localhost-style hosts when TRUSTED\_CUSTOM\_HOSTS is unset, letting unauthenticated attackers access internal loopback and Docker host services via crafted x-portkey-custom-host headers.

CVSS base score 7.2 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-110719)

## Details

Type

Server Side Request Forgery

Impact

Server Side Request Forgery, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-918](https://cwe.mitre.org/data/definitions/918.html)

## Vendor fix

Update to a version later than 1.15.2 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-110719](https://nvd.nist.gov/vuln/detail/CVE-2026-110719)
- [https://www.vulncheck.com/advisories/portkey-ai-gateway-1.14.0-through-1.15.2-ssrf-via-x-portkey-custom-host-header](https://www.vulncheck.com/advisories/portkey-ai-gateway-1.14.0-through-1.15.2-ssrf-via-x-portkey-custom-host-header)
- [https://github.com/Portkey-AI/gateway](https://github.com/Portkey-AI/gateway)
- [https://github.com/Portkey-AI/gateway/blob/ca7712947ec8c0887803990b746740d36011c697/src/middlewares/requestValidator/index.ts#L289](https://github.com/Portkey-AI/gateway/blob/ca7712947ec8c0887803990b746740d36011c697/src/middlewares/requestValidator/index.ts#L289)
- [https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/BJypv-aiMg](https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/BJypv-aiMg)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)