Arbitrary Command Injection Affecting ms-agent package, versions [0,1.6.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-MSAGENT-15440541
- published8 Mar 2026
- disclosed2 Mar 2026
- creditItamar Yochpaz
Introduced: 2 Mar 2026
CVE-2026-2256 (opens in a new tab)How to fix?
Upgrade ms-agent to version 1.6.0 or higher.
Overview
ms-agent is a MS-Agent: Lightweight Framework for Empowering Agents with Autonomous Exploration
Affected versions of this package are vulnerable to Arbitrary Command Injection via the ms-agent process. An attacker can execute arbitrary operating system commands by supplying specially crafted input derived from prompts.