piflow 2.0.0 through 2.0.1 Unauthenticated RCE via Chat Agent exec_shell

{
  "id": "a2b908215030fe3f05666e99aab28013970e2a3daec7326f63b12ead1537af1e",
  "url": "https://osv.dev/vulnerability/CVE-2026-109442",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "piflow 2.0.0 through 2.0.1 Unauthenticated RCE via Chat Agent exec_shell",
    "summary": "piflow 2.0.0 through 2.0.1 contains a remote code execution vulnerability in its DeepAgents chat agent, whose POST /chat and POST /chat/stream endpoints lack authentication. Attackers can instruct the agent to call the exec_shell tool, which runs arbitrary commands via subprocess.run without human approval or an allow-list, exposing environment secrets such as LLM API keys and database credentials.",
    "evidence": "osv:CVE-2026-109442",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-109442",
      "aliases": [
        "CVE-2026-109442"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cas-bigdatalab/piflow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f3b421cb071dd45a6e8f34c65861724064e503d8"
                },
                {
                  "last_affected": "ad8d0108a54a4257307d4946dc9250e26f24c63f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "last_affected": "2.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "last_affected": "2.0.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.1",
            "v2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109442.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.992515690Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109442.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-109442",
        "https://www.vulncheck.com/advisories/piflow-2.0.0-through-2.0.1-unauthenticated-rce-via-chat-agent-exec-shell",
        "https://github.com/cas-bigdatalab/piflow",
        "https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/agents/tools.py#L114",
        "https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/server.py#L615",
        "https://www.lasso.security/vulnerability-database/cve-2026-109442"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-306"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109442.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-109442",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505423,
  "published_at": "2026-10-20T00:46:06.694+00:00"
}