CVE-2026-4201 glowxq glowxq-oj SysFileController.java upload unrestricted upload
Attackers can upload malicious files to the glowxq-oj online judge system, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4201?
CVE-2026-4201 is a medium-severity vulnerability in glowxq-oj, published on 16 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in glowxq glowxq-oj up to 6f7c723090472057252040fd2bbbdaa1b5ed2393. This vulnerability affects the function Upload of the file business/business-system/src/main/java/com/glowxq/system/admin/controller/SysFileController.java. Executing a manipulation can lead to unrestricted upload. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-4201?
How do I fix CVE-2026-4201?
No fix has been published for CVE-2026-4201 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-4201 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4201 exists.
Sources
Also known as GHSA-37f5-fj8f-gwv5.