{"id":"CVE-2026-85660","title":"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","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 command substitution syntax like $(...) or backticks t…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-78"],"published":"2026-09-04","updated":"2026-09-24","sourceUpdated":"2026-09-24T20:43:32.537","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85660","references":[{"url":"https://github.com/MladenSU/cli-mcp-server","label":"disclosure@vulncheck.com"},{"url":"https://github.com/MladenSU/cli-mcp-server/blob/main/src/cli_mcp_server/server.py","label":"disclosure@vulncheck.com"},{"url":"https://github.com/MladenSU/cli-mcp-server/issues/17","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/cli-mcp-server-0.2.5-command-allowlist-bypass-via-shell-substitution","label":"disclosure@vulncheck.com"},{"url":"https://github.com/MladenSU/cli-mcp-server/issues/17","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00622,"epssPercentile":0.47516,"ingestedAt":"2026-09-24T20:51:40.243Z","slug":"CVE-2026-85660","body":"## Overview\n\ncli-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}