CVE-2026-91988
atomic-agents-stack before 1.1.0 Remote Code Execution via HTTP MCP
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-319 |
| Vendor | dep0we |
| Product | atomic-agents-stack |
| Published | Sep 15, 2026 |
| Last Updated | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
dep0we / atomic-agents-stack
0 < 1.1.0