{"id":"CVE-2026-85660","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-85660","summary":"cli-mcp-server 0.2.5 contains a command allowlist bypass vulnerability in the _validate_command_with_operators function when ALLOW_SHELL_OPERATORS is enabled. Attackers can use shell…","details":"cli-mcp-server 0.2.5 contains a command allowlist bypass vulnerability in the _validate_command_with_operators function when ALLOW_SHELL_OPERATORS is enabled. Attackers can use shell command substitution syntax like $(...) or backticks to execute non-allowlisted commands that bypass the ALLOWED_COMMANDS validation check.","published":"2026-09-04T15:17:43.490","modified":"2026-09-04T15:17:43.490","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/MladenSU/cli-mcp-server"},{"type":"WEB","url":"https://github.com/MladenSU/cli-mcp-server/blob/main/src/cli_mcp_server/server.py"},{"type":"WEB","url":"https://github.com/MladenSU/cli-mcp-server/issues/17"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/cli-mcp-server-0.2.5-command-allowlist-bypass-via-shell-substitution"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-04T15:17:43.490"}}