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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.

PUBLISHED Reserved 2026-04-23 | Published 2026-04-23 | Updated 2026-04-24 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

Default status
unaffected

Any version before 482cde6500009112a8bc0b3fa8d2ef6180581ec0
unaffected

Any version before 1.6.0
affected

Credits

Manthan Ghasadiya finder

References

github.com/radareorg/radare2-mcp/issues/45 (Pull Request) technical-description exploit

github.com/...ommit/482cde6500009112a8bc0b3fa8d2ef6180581ec0 (Patch Commit) issue-tracking

www.vulncheck.com/...njection-via-shell-metacharacter-bypass third-party-advisory

cve.org (CVE-2026-6942)

nvd.nist.gov (CVE-2026-6942)

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