CVE-2026-1126 lwj flow SVG File FormResource.java uploadFile unrestricted upload
Remote attackers can upload malicious SVG files via the uploadFile function in lwj flow, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1126?
CVE-2026-1126 is a medium-severity vulnerability in lwj flow, published on 18 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in lwj flow up to a3d2fe8133db9d3b50fda4f66f68634640344641. This affects the function uploadFile of the file \flow-master\flow-front-rest\src\main\java\com\dragon\flow\web\resource\flow\FormResource.java of the component SVG File Handler. The manipulation of the argument File leads to unrestricted upload. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-1126?
How do I fix CVE-2026-1126?
No fix has been published for CVE-2026-1126 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-1126 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1126 exists.
Sources
Also known as GHSA-rf69-3jvx-93qp.