CVE-2026-109442
piflow 2.0.0 through 2.0.1 Unauthenticated RCE via Chat Agent exec_shell
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 |
| Vendor | cas-bigdatalab |
| Product | piflow |
| Published | Oct 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
cas-bigdatalab / piflow
2.0.0 ≤ 2.0.1
References
lasso.security: https://www.lasso.security/vulnerability-database/cve-2026-109442 github.com: https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/agents/tools.py#L114 github.com: https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/server.py#L615 vulncheck.com: https://www.vulncheck.com/advisories/piflow-2.0.0-through-2.0.1-unauthenticated-rce-via-chat-agent-exec-shell
Credits
Noy Pearl Michael Sromin Ophir Dror