CVE-2026-55786: falha de alta gravidade em flytohub flyto-core
Flyto2 Core: Unauthenticated Command Execution via HTTP MCP `execute_module`
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43Vexday Risk Score
Priorize a correção. Ela exploração observada pelo VulnCheck.
ssvc Actcvss 8.4epss 0.4%
da publicação à arma
Publicada no NVD14 de out.
VulnCheck14 de set.
Flyto2 Core is an execution kernel for automation and AI-agent workflows. From 2.26.2 until 2.26.4, the HTTP MCP POST /mcp route accepts unauthenticated JSON-RPC tools/call requests and forwards execute_module arguments to the module registry without the require_auth dependency used by the REST execution routes. An unauthenticated caller can select sandbox.execute_shell and supply its command parameter, which reaches asyncio.create_subprocess_shell with the privileges of the flyto-core server process. The endpoint is reachable locally under the default loopback binding and becomes network reachable when an operator binds the server to a non-loopback interface, allowing arbitrary OS command execution and potential full host compromise. This issue is fixed in version 2.26.4.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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