CVE-2026-91784 Argument Injection leading to arbitrary process termination in gotop
A local attacker can craft a process name to trigger argument injection in gotop, causing arbitrary process termination for other users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-91784?
CVE-2026-91784 is a medium-severity command injection vulnerability in cjbassi gotop, published on 2 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
cjbassi/gotop is vulnerable to local argument injection via process termination functionality. The process name is passed directly to pkill without sanitization. A local attacker can create a process with a crafted name beginning with -- (e.g. containing a target user's UID). When the user running gotop invokes the kill feature on that process, pkill interprets the crafted name as a command-line option, terminating all processes owned by the targeted user.
Product is no longer actively supported and the vulnerabilities have not been fixed. Vulnerability was confirmed at version 3.0.0; other versions were not tested but may also be affected.
Weakness: CWE-88
Which versions are affected by CVE-2026-91784?
How do I fix CVE-2026-91784?
No fix has been published for CVE-2026-91784 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-2026-91784 being exploited?
There is no known exploitation of CVE-2026-91784 in the wild and no public exploit code.
Sources
Also known as GHSA-pm6f-qrm6-v363.