CVE-2026-16489 in jsforce
Summary
by MITRE • 07/22/2026
A vulnerability was identified in jsforce up to 3.10.16. This issue affects the function _execCommand in the library lib/registry/sfdx.js of the component SFDX Connection Registry. The manipulation leads to os command injection. The attack can only be performed from a local environment. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 07/22/2026
The jsforce library vulnerability represents a critical operating system command injection flaw that exists in versions up to 3.10.16 within the SFDX Connection Registry component. This vulnerability specifically targets the _execCommand function located in the lib/registry/sfdx.js file, creating a pathway for malicious command execution when the affected library processes user input through the registry functionality. The flaw stems from insufficient input validation and sanitization mechanisms that allow arbitrary operating system commands to be executed with the privileges of the process running the jsforce library.
The technical nature of this vulnerability places it firmly within the scope of CWE-78, which specifically addresses OS Command Injection flaws in software systems. This classification indicates that the vulnerability allows attackers to inject and execute arbitrary commands on the underlying operating system through improperly validated inputs. The attack vector requires local environment access, meaning an adversary must already have access to the system where jsforce is installed and running, typically through a compromised user account or administrative access. However, this local requirement does not diminish the severity of the vulnerability, as it can be exploited by privileged users with malicious intent.
The operational impact of this vulnerability extends beyond simple command execution capabilities, as it could enable attackers to escalate privileges, access sensitive system resources, manipulate data, or establish persistence mechanisms within the compromised environment. When an attacker successfully exploits this vulnerability through the SFDX Connection Registry functionality, they can execute any operating system commands available to the executing process, potentially leading to complete system compromise. The fact that this exploit is publicly available and may already be in use increases the risk profile significantly, as it reduces the time window for organizations to detect and remediate the issue.
Organizations utilizing jsforce version 3.10.16 or earlier should immediately implement mitigations including upgrading to the latest stable release where the vulnerability has been patched, implementing strict input validation measures, and monitoring system logs for suspicious command execution patterns. Additional protective measures include restricting local access to systems running jsforce, implementing network segmentation, and applying principle of least privilege configurations to limit the potential impact if exploitation occurs. The vulnerability's public exploit availability suggests that security teams should also consider implementing runtime application self-protection mechanisms and continuous monitoring solutions that can detect anomalous command execution patterns indicative of OS command injection attacks.