PYSEC-2026-2668

Vulnerability from pysec - Published: 2026-07-13 14:36 - Updated: 2026-07-13 16:04
VLAI
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.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Impacted products
Name purl
ms-agent pkg:pypi/ms-agent
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "ms-agent",
        "purl": "pkg:pypi/ms-agent"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.6.0rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-2256",
    "GHSA-4gc2-344q-r2rw"
  ],
  "details": "A Command Injection vulnerability in ModelScope\u0027s MS-Agent versions v1.6.0rc1 and earlier exists, allowing an attacker to execute arbitrary operating system commands through crafted prompt-derived input.",
  "id": "PYSEC-2026-2668",
  "modified": "2026-07-13T16:04:59.724764Z",
  "published": "2026-07-13T14:36:40.119155Z",
  "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": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MS-Agent vulnerable to Command Injection"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.