PT-2025-48576 · Portkey Ai · Portkey.Ai Gateway

Published 2025-12-01 · Updated 2026-02-06 · CVE-2025-66405

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Portkey.ai Gateway versions prior to 1.14.0

Description The Portkey.ai Gateway, a fast AI Gateway with integrated guardrails, is susceptible to Server-Side Request Forgery (SSRF) attacks in versions before 1.14.0. The gateway determines the destination baseURL by prioritizing the value found in the x-portkey-custom-host request header. The proxy route then appends the client-specified path to perform an external fetch. An attacker can exploit this behavior to perform SSRF attacks by manipulating the x-portkey-custom-host header.

Recommendations Update to version 1.14.0 or later.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2025-66405

GHSA-HHH5-2CVX-VMFP

Affected Products

Portkey.Ai Gateway

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66405.json · Exploit
• https://github.com/Portkey-AI/gateway/commit/b5a7825ba5f4e6918deb32d9969899ce2229a885 · Patch
• https://github.com/Portkey-AI/gateway/security/advisories/GHSA-hhh5-2cvx-vmfp · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-66405 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-66405 · Security Note
• https://github.com/Portkey-AI/gateway/pull/1372 · Note
• https://t.me/cveNotify/151154 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1995655704435126410 · Twitter Post
• https://twitter.com/CVEnew/status/1995626928871518276 · Twitter Post
• https://t.me/cveNotify/144477 · Telegram Post
• https://t.me/CVEtracker/38608 · Telegram Post