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TI-2026-62118 Aliases CVE-2026-91988GHSA-wr36-693x-8mgc

atomic-agents-stack before 1.1.0 Remote Code Execution via HTTP MCP

Priority MEDIUM 42CWE-319Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-319.

Summary

atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry backend factory, allowing network man-in-the-middle attackers to rewrite catalog responses. Attackers can inject arbitrary command and argument values that are spawned as local subprocesses by MCPClientPool to achieve code execution on the agent host.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00318 24th 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
Total

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-2026-62117 atomic-agents-stack before 1.1.0 Cost Guardrail Bypass via Unknown ModelPriority LOW 32
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-91988
  2. 2026-10-03 Alias added: GHSA-wr36-693x-8mgc

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-2026-62117 atomic-agents-stack before 1.1.0 Cost Guardrail Bypass via Unknown Model CVSS 4.0HIGH 7.1

Sources

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