CVE-2026-6942 | radare2-mcp version 1.6.0 and earlier contains an os command… | CVSS 9.8 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.

Metadata

CVE ID: CVE-2026-6942
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-04-23 20:52 UTC
Published: 2026-04-23 20:58 UTC
Last updated: 2026-07-14 22:03 UTC
Primary CWE: CWE-78
CWE-78 Improper neutralization of special elements used in a…
Vendor / Product: radareorg / radare2-mcp
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
radareorg	radare2-mcp	—	0 < 1.6.0

Weakness (CWE)

CWE	Source	Description
CWE-78	cna	CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	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

References (3)