Description
A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| langflow-ai | langflow | 1.8.0, 1.8.1, 1.8.2, 1.8.3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | langflow | < 1.9.1 | 1.9.1 | GHSA-9jpj-cph8-w449 |
Advisories 1
- WID-SEC-2026-1178 Langflow: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 19, 2026
References
- VDB-358233 | langflow-ai langflow Project Creation Endpoint projects.py encrypt_auth_settings cleartext storage in file vdb-entry technical-description
- VDB-358233 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- Submit #791921 | Langflow <= 1.8.3 CWE-311: Missing Encryption of Sensitive Data third-party-advisory
- https://gist.github.com/chenhouser2025/77adb3486c06c635ae4b09a3eaf90213 exploit