CVE-2026-85660
High
Description
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.
SeverityHigh
CVSS8.1
Exploit probability—
ProductMladensu Cli-mcp-server
PublishedSep 4, 2026
First seenSep 4, 2026
Weakness typeCWE-78OS command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MladenSU cli-mcp-server | v ≤ 0.2.5 | — |
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