CVE-2026-6942

radare2-mcp <=1.6.0 OS Command Injection via Shell Metacharacter Bypass

Published Apr 23, 2026 CVSS 4.0 · 9.3 Critical EPSS 1.9% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Radare radare2 Mcp Server
CPEs cpe:2.3:a:radare:radare2_mcp_server:*:*:*:*:*:*:*:*
Vendors & Products Radare radare2 Mcp Server
Type Values Removed Values Added
Weaknesses CWE-78
Type Values Removed Values Added
First Time appeared Radare
Radare radare2
Vendors & Products Radare
Radare radare2
Type Values Removed Values Added
Weaknesses CWE-78
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title radare2-mcp <=1.6.0 OS Command Injection via Shell Metacharacter Bypass
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 29, 2026, 9:16 PM
Reserved
Apr 23, 2026, 8:52 PM
Status
Analyzed
Published
Apr 23, 2026, 9:16 PM
Modified
Oct 29, 2026, 9:17 PM