CVE-2026-6942

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Source

https://cve.org/CVERecord?id=CVE-2026-6942

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6942.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-6942

Published

2026-04-23T20:58:10Z

Modified

2026-08-12T16:10:01Z

Severity

9.3 (Critical) CVSS_V4 - 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 CVSS Calculator

Summary

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

Details

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.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6942.json"
}

References

Affected packages

Git / github.com/radareorg/radare2-mcp

Affected ranges

Type

GIT

Repo

https://github.com/radareorg/radare2-mcp

Events

Introduced

Fixed

84bdd3afde7d11bcf7baddcd220e565c2e2c36f9

Fixed

482cde6500009112a8bc0b3fa8d2ef6180581ec0

Database specific

Show details

{
    "cpe": "cpe:2.3:a:radare:radare2_mcp_server:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.7.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

1.*

1.0.0

1.1.0

1.2.0

1.3.0

1.4.0

1.4.2

1.5.0

1.5.2

1.5.4

1.5.6

1.6.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6942.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
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            "length": 1343
        },
        "id": "CVE-2026-6942-40a4e29d",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0",
        "target": {
            "file": "src/main.c",
            "function": "r2mcp_help"
        }
    },
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        },
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        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0",
        "target": {
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        }
    },
    {
        "deprecated": false,
        "digest": {
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            "length": 2251
        },
        "id": "CVE-2026-6942-755d5f4a",
        "signature_type": "Function",
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        "source": "https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0",
        "target": {
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    },
    {
        "deprecated": false,
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        "source": "https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0",
        "target": {
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            "function": "r2mcp_main"
        }
    },
    {
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            "threshold": 0.9
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        "id": "CVE-2026-6942-b3fe8693",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0",
        "target": {
            "file": "src/main.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
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        "signature_type": "Line",
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        "source": "https://github.com/radareorg/radare2-mcp/commit/482cde6500009112a8bc0b3fa8d2ef6180581ec0",
        "target": {
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        }
    }
]

vanir_signatures_modified

"2026-08-12T16:10:01Z"