CVE-2026-124002 Dixell/Copeland XWEB EVO Pre-Auth OS Command Injection via Username
Unauthenticated remote attackers can inject shell commands via the login username on XWEB EVO controllers, gaining root; operators of these end-of-service devices should care.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-124002?
CVE-2026-124002 is a critical command injection vulnerability in Copeland XWEB EVO, published on 12 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
XWEB EVO versions 5.2.3 through before 5.7.0 contains a pre-authentication OS command injection vulnerability that allows unauthenticated remote attackers to execute arbitrary OS commands by injecting shell metacharacters into the username field of login.lua, cleanout.lua, or api.lua before the password check occurs. Attackers can exploit this flaw combined with the setuid-root wlua interpreter to execute commands with root privileges, achieving full system compromise. This product line reached it's end of service date in March 2026.
Which versions are affected by CVE-2026-124002?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-124002?
No fix has been published for CVE-2026-124002 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-2026-124002 being exploited?
There is no known exploitation of CVE-2026-124002 in the wild and no public exploit code.
Sources
Also known as GHSA-6fgf-7rxh-228q.