Quick answers
- Is CVE-2025-65889 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-65889 being exploited in the wild.
- How severe is CVE-2025-65889?
- High severity, with a CVSS score of 7.5, published 28 January 2026.
- Which products and versions are affected?
- Oneflow-Inc OneFlow 0.9.0.
- Is there a fix for CVE-2025-65889?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2025-65889 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2025-65889?
- Check whether you run Oneflow. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A type validation vulnerability exists in the flow.dstack() component of OneFlow v0.9.0. The issue stems from improper handling of input types, specifically when a mixture of OneFlow tensors and NumPy arrays are passed to the function, leading to a type mismatch. This root cause triggers a segmentation fault and subsequent core dump (CWE-400). An attacker can exploit this by providing specially crafted inputs to the affected function, resulting in a complete denial of service for the application. The vulnerability is reachable over the network if the application exposes an interface that processes user-supplied data through this component.
Affected products
- Oneflow-Inc OneFlow 0.9.0
Timeline
- 2025-06-30: disclosed: Issue reported on GitHub repository
- 2026-01-28: advisory: CVE published to NVD