CVE-2026-109442
piflow 2.0.0 through 2.0.1 Unauthenticated RCE via Chat Agent exec_shell
- State
- Published
- Severity
- 9.3 Critical
- Published
- Oct 20, 2026
- Updated
- Oct 20, 2026
- Reserved
- Oct 12, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
piflowcas-bigdatalab |
|
References
- Lasso.security Advisorytechnical-descriptionexploit
- https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/agents/tools.py#L114technical-description
- https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/server.py#L615technical-description
- VulnCheck Advisory: piflow 2.0.0 through 2.0.1 Unauthenticated RCE via Chat Agent exec_shellthird-party-advisory
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