CVE-2026-85660
cli-mcp-server 0.2.5 contains a command allowlist bypass vulnerability in the _validate_command_with_operators function when ALLOW_SHELL_OPE
CVSS
8.1
High
EPSS
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KEV
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Exploit Today
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0-100
Published: Sep 4, 2026 · Last modified: Sep 4, 2026 · CWE-78
Not enough EPSS history yet.
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.
- github.comhttps://github.com/MladenSU/cli-mcp-server
- github.comhttps://github.com/MladenSU/cli-mcp-server/blob/main/src/cli_mcp_server/server.py
- github.comhttps://github.com/MladenSU/cli-mcp-server/issues/17
- www.vulncheck.comhttps://www.vulncheck.com/advisories/cli-mcp-server-0.2.5-command-allowlist-bypass-via-shell-substitution
- github.comhttps://github.com/MladenSU/cli-mcp-server/issues/17
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-539328.0 HIG—
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———IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to execute arbitrary commands due to improper neutralization of special elements used in an OS command.19h