CVE-2026-50879 linx-server has an issue in the uploadPostHandler component that allows attackers to cause a Denial of Service (DoS) via a crafted POST request
Attackers can cause a Denial of Service in linx-server by sending a crafted POST request to the upload handler.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-50879?
CVE-2026-50879 is a high-severity denial of service vulnerability in n/a, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in the uploadPostHandler component of Andrei Marcu linx-server v2.3.8 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
Weakness: CWE-400
Which versions are affected by CVE-2026-50879?
3 open source packages ship an affected version, including github.com/andreimarcu/linx-server.
| Package | Affected | Fixed in |
|---|---|---|
github.com/andreimarcu/linx-server Go | All versions | None |
github.com/andreimarcu/linx-server Go | All versions to 2.3.8 | None |
github.com/andreimarcu/linx-server Go | All versions to 2.3.8 | None |
How do I fix CVE-2026-50879?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-50879 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50879 exists.
Sources
Also known as GHSA-g743-m6x3-v6wm, GO-2026-6297.