CVE-2026-2256 Command injection vulnerability in ModelScope's ms-agent
Attackers can execute arbitrary OS commands via crafted prompts in ModelScope's ms-agent library, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2256?
CVE-2026-2256 is a medium-severity command injection vulnerability in ModelScope ms-agent, published on 2 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A command injection vulnerability in ModelScope's ms-agent versions v1.6.0rc1 and earlier exists, allowing an attacker to execute arbitrary operating system commands through crafted prompt-derived input.
Weakness: CWE-77
Which versions are affected by CVE-2026-2256?
3 open source packages ship an affected version, including ms-agent.
| Package | Affected | Fixed in |
|---|---|---|
ms-agent PyPI | All versions to 1.6.0rc1 | None |
ms-agent PyPI | All versions to 1.6.0rc1 | None |
ms-agent PyPI | All versions to 1.6.0rc1 | None |
How do I fix CVE-2026-2256?
No fix has been published for CVE-2026-2256 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-2256 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2256 exists.
Public exploit code: 3 proofs of concept on GitHub.
Sources
Also known as GHSA-4gc2-344q-r2rw, PYSEC-2026-2668.