CVE-2026-6942 | radareorg radare2 up to 1.5.x Jsonrpc Interface r2_cmd_str os command injection (Issue 45)

VDB-359227 · CVE-2026-6942 · ISSUE 45 RADAREORG RADARE2 UP TO 1.5.X JSONRPC INTERFACE R2_CMD_STR OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.4 $0-$5k 3.83+ 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. Productinfo Type Programming Tool Software Vendor radareorg Name radare2 Version 1.0 1.1 1.2 1.3 1.4 1.5 License open-source 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: 8.5 VulDB Meta Temp Score: 8.4 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.8 CNA Vector (VulnCheck): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock 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 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock 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 04/23/2026 +0 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 Entryinfo Created: 04/23/2026 23:34 Changes: 04/23/2026 23:34 (82) Complete: 🔍 Cache ID: 99:F10:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸