id: PYSEC-2026-2668
published: "2026-07-13T14:36:40.119155Z"
modified: "2026-07-13T16:04:59.724764Z"
aliases:
- CVE-2026-2256
- GHSA-4gc2-344q-r2rw
summary: MS-Agent vulnerable to Command Injection
details: 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.
affected:
- package:
    name: ms-agent
    ecosystem: PyPI
    purl: pkg:pypi/ms-agent
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - last_affected: 1.6.0rc1
  versions:
  - 0.0.0
  - 1.0.0
  - 1.0.0rc0
  - 1.0.1rc0
  - 1.1.0
  - 1.1.1
  - 1.1.2
  - 1.2.0
  - 1.3.0
  - 1.4.0
  - 1.5.0
  - 1.5.1
  - 1.5.2
  - 1.6.0rc0
  - 1.6.0rc1
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2026-2256
- type: WEB
  url: https://github.com/Itamar-Yochpaz/CVE-2026-2256-PoC
- type: PACKAGE
  url: https://github.com/modelscope/ms-agent
- type: WEB
  url: https://medium.com/@itamar.yochpaz/cve-2026-2256-from-ai-prompt-to-full-system-compromise-a4114c718326
- type: WEB
  url: https://www.hiddenlayer.com/research/indirect-prompt-injection-of-claude-computer-use
- type: WEB
  url: https://www.kb.cert.org/vuls/id/431821
- type: PACKAGE
  url: https://pypi.org/project/ms-agent
- type: ADVISORY
  url: https://github.com/advisories/GHSA-4gc2-344q-r2rw
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N