CVE-2026-109442: critical vulnerability in cas-bigdatalab piflow
piflow 2.0.0 through 2.0.1 Unauthenticated RCE via Chat Agent exec_shell
Published
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.8%
exploitation probability
0.8%top 42% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
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 products
cas-bigdatalab · piflowpublic PoCs found — 1
cve_referencewww.lasso.security/vulnerability-database/cve-2026-109442unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/agents/tools.py#L114https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54a4257307d4946dc9250e26f24c63f/server.py#L615https://www.lasso.security/vulnerability-database/cve-2026-109442https://www.vulncheck.com/advisories/piflow-2.0.0-through-2.0.1-unauthenticated-rce-via-chat-agent-exec-shell