radareorg radare2 up to 1.5.x Jsonrpc Interface r2_cmd_str os command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in radareorg radare2 up to 1.5.x. Affected by this vulnerability is the function r2_cmd_str of the component Jsonrpc Interface. This manipulation causes os command injection. This vulnerability is tracked as CVE-2026-6942. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in radareorg radare2 up to 1.5.x. Affected by this vulnerability is the function r2_cmd_str of the component Jsonrpc Interface. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed by Manthan Ghasadiya as 45. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-6942 since 04/23/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 1.6.0 eliminates this vulnerability. Applying the patch 482cde6500009112a8bc0b3fa8d2ef6180581ec0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-25314). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CNA Base Score: 9.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: radare2 1.6.0
Patch: 482cde6500009112a8bc0b3fa8d2ef6180581ec0

Timelineinfo

04/23/2026 Advisory disclosed
04/23/2026 +0 days CVE reserved
04/23/2026 +0 days VulDB entry created
06/04/2026 +42 days VulDB entry last update

Sourcesinfo

Advisory: 45
Researcher: Manthan Ghasadiya
Status: Confirmed

CVE: CVE-2026-6942 (🔒)
GCVE (CVE): GCVE-0-2026-6942
GCVE (VulDB): GCVE-100-359227
EUVD: 🔒

Entryinfo

Created: 04/23/2026 23:34
Updated: 06/04/2026 18:27
Changes: 04/23/2026 23:34 (82), 04/24/2026 05:02 (1), 06/04/2026 18:27 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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