CVE-2026-6942
Critical
Description
radare2-mcp version 1.6.0 and earlier contains an os command injection vulnerability that allows remote attackers to execute arbitrary commands by bypassing the command filter through shell metacharacters in user-controlled input passed to r2_cmd_str(). Attackers can inject shell metacharacters through the jsonrpc interface parameters to achieve remote code execution on the host running radare2-mcp without requiring authentication.
SeverityCritical
CVSS9.8
Exploit probability—
ProductRadare2 Mcp Server
PublishedApr 23, 2026
First seenApr 23, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- radare radare2_mcp_server1.7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| radare radare2_mcp_server | v < 1.7.0 | 1.7.0 |
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