CVE-2026-90492 webgjc web_robot web.py controller_recover os command injection
Remote attackers can execute arbitrary OS commands via the case_name argument in the controller_recover function of web_robot.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-90492?
CVE-2026-90492 is a medium-severity command injection vulnerability in webgjc web_robot, published on 13 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A security vulnerability has been detected in webgjc web_robot 2.4.0/2.5.0/2.8.0. The affected element is the function controller_listen/controller_recover of the file py/web.py. The manipulation of the argument case_name leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly 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-2026-90492?
How do I fix CVE-2026-90492?
No fix has been published for CVE-2026-90492 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-2026-90492 being exploited?
There is no known exploitation of CVE-2026-90492 in the wild and no public exploit code.
Sources
Also known as GHSA-ff59-mhrh-hcvf.