CVE-2026-110719mediumCWE-918

CVE-2026-110719: medium-severity vulnerability in Portkey-AI gateway

Portkey AI Gateway 1.14.0 through 1.15.2 SSRF via x-portkey-custom-host Header

Published · Updated

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.9epss 0.4%
exploitation probability
0.4%top 71% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
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
Affected products
Portkey-AI · gateway
public PoCs found — 1
cve_referencehackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/BJypv-aiMgunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Portkey-AI gateway

In the same product, most dangerous first.

CVE-2026-82270HIGHPortkey AI Gateway Server-Side Request Forgery via /v1/proxy/*EPSS 0.5%CVE-2025-66405MEDIUMPortkey.ai Gateway: Server-Side Request Forgery (SSRF) in Custom HostEPSS 0.4%
References
https://github.com/Portkey-AI/gatewayhttps://github.com/Portkey-AI/gateway/blob/ca7712947ec8c0887803990b746740d36011c697/src/middlewares/requestValidator/index.ts#L289https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/BJypv-aiMghttps://www.vulncheck.com/advisories/portkey-ai-gateway-1.14.0-through-1.15.2-ssrf-via-x-portkey-custom-host-header