CVE-2026-91988 — atomic-agents-stack before 1.1.0 Remote Code Execution via HTTP MCP
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 …
Published: 2026-09-15 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7