CVE-2026-108540 OpenSpug File Transfer transfer os command injection
Remote attackers can execute arbitrary OS commands via the File Transfer component in OpenSpug, leading to potential system compromise.
- 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-2026-108540?
CVE-2026-108540 is a critical command injection vulnerability in OpenSpug Spug, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in OpenSpug Spug up to 3.4.0/4.0.1. This impacts an unknown function of the file /exec/transfer of the component File Transfer. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-108540?
How do I fix CVE-2026-108540?
No fix has been published for CVE-2026-108540 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-108540 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108540 exists.
Sources
Also known as GHSA-wv44-gq26-hmfv.