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TI-2026-62117 Aliases CVE-2026-91987GHSA-gpqc-jrqh-x9xp

atomic-agents-stack before 1.1.0 Cost Guardrail Bypass via Unknown Model

Priority LOW 32CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00476 41st percentileScored 2026-11-07
Fix Fixed atomic-agents-stack (dep0we): 1.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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

VendorProductAffected versionsFixed inStatusSource
dep0weatomic-agents-stackbefore 1.1.01.1.0Patch availableCNA
  • atomic-agents-stack Vendordep0we Affected before 1.1.0 Fixed in 1.1.0 Patch available CNA

Remediation

  • Fix · CNA atomic-agents-stack (dep0we) Fixed in 1.1.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    dep0we atomic-agents-stack 1.1.0

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-62119 atomic-agents-stack before 1.1.0 Path Traversal via dashboard serve.pyPriority MEDIUM 46
    • TI-2026-62118 atomic-agents-stack before 1.1.0 Remote Code Execution via HTTP MCPPriority MEDIUM 42
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-91987
  2. 2026-10-03 Alias added: GHSA-gpqc-jrqh-x9xp

References

Advisory 1

  • TI-2026-62119 atomic-agents-stack before 1.1.0 Path Traversal via dashboard serve.py CVSS 4.0HIGH 8.7
  • TI-2026-62118 atomic-agents-stack before 1.1.0 Remote Code Execution via HTTP MCP CVSS 4.0CRITICAL 9.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences