Vulnerability record · CVE-2026-6942 · published 23 April 2026

CVE-2026-6942: Radare2 mcp server os command injection vulnerability

Radare · Radare2 Mcp Server

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.

9.3 CVSS 4.0 Critical EPSS 3.0% · top 13.2% CWE-78 · OS command injection

9.3CVSS 4.0 base score

3.0%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References, 1 tagged exploit

17 Jun 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Radare2 Mcp Server Radare

References

Link	Tags
https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0	Patch
https://github.com/radareorg/radare2-mcp/issues/45	ExploitIssue Tracking
https://www.vulncheck.com/advisories/radare2-mcp-os-command-injection-via-shell-metacharacter-bypass	Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-6942), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.