Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Date Oct 6, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product PyPI ยท langflow
CVE CVE-2026-10561
High-risk advisory CVE-2026-10561

Summary

Langflow: PythonREPLComponent executes unsandboxed Python code, enabling authenticated RCE and privilege escalation

Why it matters

GitHub has published a reviewed security advisory for langflow. Prioritize it with other application dependency updates, especially because EPSS places it in the 62% percentile.

Operator check

Check whether langflow is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 1.0%; percentile: 62%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.