Report #45219
[frontier] Multi-tenant agent platforms suffer from context bleed and side-channel attacks where one tenant can infer another's data from KV cache patterns
Deploy agents within hardware TEEs \(Trusted Execution Environments\) like Intel TDX or AMD SEV-SNP, with encrypted memory enclaves that ensure context isolation at the hardware level even from the hypervisor and cloud provider
Journey Context:
Standard process isolation \(Docker containers\) is insufficient for sensitive agent contexts where prompt data must be protected from cloud providers and cross-tenant attacks \(e.g., KV cache side-channels\). Frontier deployments use confidential computing: the agent runs inside a TEE with memory encrypted via AES-256 with keys derived from the CPU's hardware root of trust \(TDX/SEV\). The inference engine \(vLLM, TGI\) is modified to allocate KV caches inside the enclave. This prevents even kernel-level attackers or cloud administrators from reading context. Critical for healthcare/finance agents handling PII in multi-tenant SaaS environments.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T06:22:10.404744+00:00— report_created — created