CVE-2025-66405
criticalPortkey.ai Gateway is a blazing fast AI Gateway with integrated guardrails.
Vendor / product: Portkey — gateway
Portkey.ai Gateway is a blazing fast AI Gateway with integrated guardrails. Prior to 1.14.0, the gateway determined the destination baseURL by prioritizing the value in the x-portkey-custom-host request header. The proxy route then appends the client-specified path to perform an external fetch. This can be maliciously used by users for SSRF attacks. This vulnerability is fixed in 1.14.0.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2025-12-01 23:15
Modified: 2026-10-18 18:10
NVD status: Analyzed
Last synced 3 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
portkey / gateway <1.14.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/Portkey-AI/gateway/commit/b5a7825ba5f4e6918deb32d9969899ce2229a885 security-advisories@github.com
- https://github.com/Portkey-AI/gateway/pull/1372 security-advisories@github.com
- https://github.com/Portkey-AI/gateway/security/advisories/GHSA-hhh5-2cvx-vmfp security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗