CVE-2026-91987 — atomic-agents-stack before 1.1.0 Cost Guardrail Bypass via Unknown Model
atomic-agents-stack before 1.1.0 contains a cost-guardrail bypass in the _estimate_batch_cost function that returns zero cost for unknown models not in the pricing table. Attack…
Published: 2026-09-15 · CVSS: 7.1 · CVSS 4.0
atomic-agents-stack before 1.1.0 contains a cost-guardrail bypass in the _estimate_batch_cost function that returns zero cost for unknown models not in the pricing table. Attackers can configure deployments with unknown model identifiers to bypass daily cost caps and exceed budget limits in parallel batch operations.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7