High severity · published Apr 23, 2026
CVE-2026-6942
radare2-mcp <=1.6.0 OS Command Injection via Shell Metacharacter Bypass
8.8
CVSS
1.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
radare2-mcp · radareorg
before 1.6.0 · source: vendor
RM
Radare2 Mcp Server · Radare
before 1.7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6942
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6942
Patch
https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0
Exploit
https://github.com/radareorg/radare2-mcp/issues/45
Third Party Advisory
https://www.vulncheck.com/advisories/radare2-mcp-os-command-injection-via-shell-metacharacter-bypass