OS Command Injection Vulnerability in radare2-mcp Software by Radare Organization
CVE-2026-6942

9.3CRITICAL

Key Information:

Vendor

Radareorg

Status
Radare2
Vendor
CVE Published:
23 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6942?

The radare2-mcp software, specifically version 1.6.0 and earlier, is susceptible to an os command injection vulnerability that allows remote attackers to execute arbitrary commands. This is done by circumventing command filters through the use of shell metacharacters within user-controlled input directed at the r2_cmd_str() function. By exploiting the jsonrpc interface parameters, attackers can gain unauthorized remote code execution on systems running radare2-mcp, with no authentication required, highlighting a significant security concern.

Affected Version(s)

radare2 0 < 1.6.0

radare2 0 < 482cde6500009112a8bc0b3fa8d2ef6180581ec0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-6942 - Proof of Concept

References

https://github.com/radareorg/radare2-mcp/issues/45
technical-descriptionexploit
https://github.com/radareorg/radare2-mcp/commit/482cde650...
issue-tracking
https://www.vulncheck.com/advisories/radare2-mcp-os-comma...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Manthan Ghasadiya
.