by Kastro
Paper/Archive/CVE-2026-6942

CVE-2026-6942

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

EPSS 2%public exploitCVSS 9.8
critical.is priorityof 100
55
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 79.8.798 × 2016.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
radare2-mcp≤ 1.6.0–CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)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
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refgithub.com/radareorg/radare2-mcp/issues/45patchgithub.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0writeupvulncheck.com/advisories/radare2-mcp-os-command-injection-via-shell-metacharacter-bypass