Description
IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate the username field, allowing attackers to inject path traversal sequences and bypass containment checks. This enables multiple severe impacts, including arbitrary directory deletion, cross-tenant data destruction, and JWT signing key deletion leading to session invalidation.
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/7282647 vendor-advisory patch