Server-side request forgery in Portkey AI Gateway
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Portkey AI Gateway 1.14.0 through 1.15.2 contains a server-side request forgery flaw (CWE-918). The isValidCustomHost check trusts localhost-style hosts when TRUSTED_CUSTOM_HOSTS is unset. An unauthenticated remote attacker can make the gateway call loopback and Docker host services and return their responses. A public exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Portkey-AI | gateway | 1.14.0 – 1.15.2 | — | No fix listed | CNA |
- gateway VendorPortkey-AI Affected 1.14.0 – 1.15.2 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Portkey AI Gateway.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-14 Threatist record created from CVE-2026-110719
- 2026-10-15 Alias added: GHSA-h36v-27jx-93r3
- 2026-10-16 Priority changed: MEDIUM → LOW
- 2026-10-20 CISA SSVC decision points changed
- 2026-10-20 Priority changed: LOW → MEDIUM
References
More Portkey-AI vulnerabilities
- TI-2026-56735 Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/* CVSS 4.0HIGH 8.7
Sources
- CVE-2026-110719 · CVE Program
- CVE-2026-110719 · NVD
- FIRST EPSS
- GHSA-h36v-27jx-93r3 · GitHub Advisory Database · CC BY 4.0
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