CVE-2026-117574

Summary

An authenticated attacker can abuse insufficient authorization checks in ai-gateway-payload-processing to inject another tenant's API keys into their own requests by specifying the target tenant's model identifier, enabling unauthorized consumption of the victim's LLM resources.

Exploitability

Requires valid authentication and knowledge of a target tenant's model identifier; low effort once those conditions are met.

Blast radius

An attacker can exhaust another tenant's API quota, incur unexpected costs, and potentially disrupt their AI workloads by consuming their allocated LLM capacity.

Detection

Look for requests to the payload-processing endpoint where the authenticated user's tenant ID does not match the tenant ID embedded in the model identifier used in the request body or header; such mismatches are strong indicators of unauthorized cross-tenant access attempts.

Prioritized remediation

Upgrade to ai-gateway-payload-processing version 2.590 or later, where the service now enforces tenant-scoped authorization before retrieving model credentials from the shared store.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.