Description
IBM Langflow OSS 1.0.0 through 1.12.2 An authenticated flow author could write attacker-controlled file content into any directory writable by the service account, bypassing the platform's local file access isolation safeguard. Via a crafted on-disk index, the attacker could also read the contents of arbitrary files accessible to the service process — including configuration files, secrets, or database files stored under the application's data directory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 – ≤ 1.12.2 | — |
Advisories 1
- WID-SEC-2026-3728 Langflow: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 8, 2026
References
- https://www.ibm.com/support/pages/node/7290694 vendor-advisory patch