CVE-2026-5831: Command Injection in taskflow-ai
Platform
nodejs
Component
taskflow-ai
Fixed in
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.1.9
CVE-2026-5831 describes a Command Injection vulnerability discovered in Agions taskflow-ai, affecting versions up to 2.1.8. This flaw allows a remote attacker to execute arbitrary operating system commands, potentially leading to complete system compromise. A patch, version 2.1.9, has been released to address this issue, and upgrading the affected component is strongly recommended.
Impact and Attack Scenarios
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.
Exploitation Context
The vulnerability was disclosed on 2026-04-08. No public proof-of-concept (PoC) code has been released as of this writing. The vendor responded promptly and released a patch, indicating a proactive approach to security. The vulnerability's impact is significant due to the ability to execute arbitrary commands remotely, but the lack of public exploits suggests a lower immediate risk.
Threat Intelligence
Exploit Status
EPSS
1.23% (79% percentile)
CISA SSVC
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- Low — no special conditions required. Attacker can exploit reliably without depending on rare configurations or timing.
- Privileges Required
- Low — any valid user account is sufficient. Basic authenticated access required.
- User Interaction
- None — attack is automatic and silent. Victim does nothing: no click, no file open.
- Scope
- Unchanged — impact is limited to the vulnerable component itself.
- Confidentiality
- Low — partial or indirect data access. Attacker gains limited information.
- Integrity
- Low — attacker can modify some data with limited scope or impact.
- Availability
- Low — partial or intermittent denial of service. Attacker can degrade performance.
Affected Software
Weakness Classification (CWE)
Timeline
- Reserved
- Published
- Modified
- EPSS updated
Mitigation and Workarounds
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.
How to fix
Update the taskflow-ai component to version 2.1.9 or higher to mitigate the operating system command injection (OS Command Injection) vulnerability. The update includes a specific fix (c1550b445b9f24f38c4414e9a545f5f79f23a0fe) that addresses this vulnerability.
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Frequently asked questions
What is CVE-2026-5831 — Command Injection in taskflow-ai?
CVE-2026-5831 is a Command Injection vulnerability in Agions taskflow-ai versions up to 2.1.8, allowing remote attackers to execute OS commands.
Am I affected by CVE-2026-5831 in taskflow-ai?
If you are using taskflow-ai versions 2.1.8 or earlier, you are potentially affected by this vulnerability.
How do I fix CVE-2026-5831 in taskflow-ai?
Upgrade to version 2.1.9 of taskflow-ai to address the vulnerability. The patch identifier is c1550b445b9f24f38c4414e9a545f5f79f23a0fe.
Is CVE-2026-5831 being actively exploited?
As of the current assessment, there are no confirmed reports of active exploitation, but the vulnerability's nature warrants caution.
Where can I find the official taskflow-ai advisory for CVE-2026-5831?
Please refer to the Agions security advisory for detailed information and updates regarding CVE-2026-5831.
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