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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Portkey-AI gateway unaffected
Version Status Constraints
1.14.0 affected ≤ 1.15.2

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Portkey-AI/gateway cve-icon cve-icon
https://github.com/Portkey-AI/gateway/blob/ca7712947ec8c0887803990b746740d36011c697/src/middlewares/requestValidator/index.ts#L289 cve-icon cve-icon
https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/BJypv-aiMg cve-icon cve-icon
https://www.vulncheck.com/advisories/portkey-ai-gateway-1.14.0-through-1.15.2-ssrf-via-x-portkey-custom-host-header cve-icon cve-icon
History

Wed, 14 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Portkey AI Gateway 1.14.0 through 1.15.2 SSRF via x-portkey-custom-host Header
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-14T15:01:32.488Z

Reserved: 2026-10-14T14:39:54.461Z

Link: CVE-2026-110719

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-14T16:17:44.183

Modified: 2026-10-14T16:17:44.183

Link: CVE-2026-110719

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses