Agions taskflow-ai vulnerable to os command injection in src/mcp/server/handlers.ts

The Command Injection vulnerability in taskflow-ai allows an attacker to execute arbitrary OS commands on the server hosting the application. Successful exploitation could lead to unauthorized access to sensitive data, modification of system configurations, and even complete system takeover. An attacker could leverage this to install malware, pivot to other systems on the network, or disrupt service availability. The remote nature of the vulnerability increases the attack surface and potential for widespread exploitation.

Organizations deploying taskflow-ai in production environments, particularly those with internet-facing deployments, are at risk. Environments where user input is directly incorporated into system commands without proper sanitization are especially vulnerable. Shared hosting environments utilizing taskflow-ai should be prioritized for patching.

• nodejs: Monitor process execution for suspicious commands originating from the taskflow-ai process.

Get-Process taskflow-ai | Select-Object -ExpandProperty CommandLine | Select-String -Pattern "[a-zA-Z]:\"

• linux / server: Examine system logs for unusual command executions related to the taskflow-ai process.

journalctl -u taskflow-ai | grep -i 'command injection'

• generic web: Check access logs for requests containing suspicious characters or patterns that could be indicative of command injection attempts.

grep -i 'command injection' /var/log/apache2/access.log

1. 2026-04-08Disclosure

   disclosure

1. Reservado2026-04-08
2. Publicada2026-04-08
3. Modificada2026-04-10
4. EPSS atualizado2026-04-16

The primary mitigation for CVE-2026-5831 is to upgrade to version 2.1.9 of taskflow-ai. This version includes a patch (c1550b445b9f24f38c4414e9a545f5f79f23a0fe) that addresses the underlying vulnerability. If immediate upgrade is not possible, consider implementing input validation and sanitization on any user-supplied data used in system commands. While not a complete solution, this can reduce the attack surface. Review and restrict file permissions for the src/mcp/server/handlers.ts file to limit potential damage. After upgrading, confirm the fix by attempting to trigger the vulnerable function with malicious input and verifying that the command execution is blocked.