CVE-2026-94139 Chengdu Feiyuxing Technology Feiyu Star Router Cookie send_order.cgi command injection
Remote attackers can execute arbitrary commands via the session_id cookie in the loginout CGI script of Feiyu Star Routers.
- 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-2026-94139?
CVE-2026-94139 is a medium-severity command injection vulnerability in Chengdu Feiyuxing Technology Feiyu Star Router, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656. Affected is an unknown function of the file /send_order.cgi?parameter=loginout of the component Cookie Handler. This manipulation of the argument session_id causes command injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-94139?
How do I fix CVE-2026-94139?
No fix has been published for CVE-2026-94139 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-2026-94139 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-94139 exists.
Sources
Also known as GHSA-qw89-gww4-836w.