Description
IBM Langflow OSS 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 use Python's non-cryptographic random module for generating Fernet encryption keys from user secrets under 32 characters. The deterministic Mersenne Twister PRNG produces identical keys for identical seeds, allowing attackers to reproduce encryption keys and decrypt stored API keys and authentication tokens.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 – ≤ 1.10.3 | — |
Advisories 1
- WID-SEC-2026-2675 IBM Langflow Desktop: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 5, 2026
References
- https://www.ibm.com/support/pages/node/7282648 vendor-advisory patch