Description
IBM Langflow OSS 1.0.0 through 1.12.3 could allow an authenticated attacker to cancel any victim's running background workflow job by sending a single HTTP request, resulting in loss of in-progress compute work with no flow-level permission check.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | Langflow OSS | 1.0.0 – ≤ 1.12.3 | — |
Advisories 1
- WID-SEC-2026-4041 Langflow: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 29, 2026
References
- https://www.ibm.com/support/pages/node/7293015 vendor-advisory patch