# CVE-2026-124002: Copeland XWEB EVO pre-authentication OS command injection

Source: https://junglewise.ai/threats/cve-2026-124002-xweb-evo-versions-5-2-3-through-before-5-7-0-contains-a-pre  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-124002 · Severity: critical · CVSS 9.8 · Published 2026-11-12

XWEB EVO is an embedded controller used to manage refrigeration and HVAC systems in commercial facilities. An unauthenticated attacker on the network can inject shell commands through the login form, bypassing password checks and gaining complete control of the system with root privileges. This enables attackers to disrupt climate control, manipulate temperature settings, disable alarms, or pivot to other building systems.

Technologies: [Copeland XWEB EVO](https://junglewise.ai/threats/technologies/xweb-evo). Vendors: [Copeland](https://junglewise.ai/threats/vendors/copeland).

## Quick answers

**Is CVE-2026-124002 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124002 being exploited in the wild.

**How severe is CVE-2026-124002?** Critical severity, with a CVSS score of 9.8, published 12 November 2026.

**Which products and versions are affected?** Copeland XWEB EVO 5.2.3 through before 5.7.0.

**Is there a fix for CVE-2026-124002?** Yes: fixed in 5.7.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-124002 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-124002?** Check whether you run Copeland XWEB EVO at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 5.7.0

## Technical details

OS command injection in the username field of login.lua, cleanout.lua, and api.lua occurs before authentication is performed. The vulnerability is pre-authentication (no login required) and network-accessible; shell metacharacters injected into the username are executed by a setuid-root wlua interpreter, allowing arbitrary code execution with elevated privileges. The flaw affects versions 5.2.3 through 5.6.x, with a fix available in version 5.7.0 and later.

## Affected products

- Copeland XWEB EVO 5.2.3 through before 5.7.0

## Timeline

- 2026-11-12: disclosed

## References

- [https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate](https://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate)
- [https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username](https://www.vulncheck.com/advisories/dixell-copeland-xweb-evo-pre-authentication-os-command-injection-via-username)

## Related threats

- [Copeland XWEB EVO authentication bypass in password reset](https://junglewise.ai/threats/cve-2026-124015-xweb-evo-5-6-2-through-5-8-8-contains-an-authentication-bypass)
- [Copeland XWEB EVO arbitrary file write](https://junglewise.ai/threats/cve-2026-124014-xweb-evo-4-3-0-through-5-8-8-contains-an-unauthenticated)
- [Copeland XWEB EVO OS command injection in api.lua](https://junglewise.ai/threats/cve-2026-124013-xweb-evo-5-6-2-through-5-8-8-contains-an-authenticated-os)
- [Copeland XWEB EVO hardcoded credential authentication bypass](https://junglewise.ai/threats/cve-2026-124012-xweb-evo-5-6-2-through-5-8-8-contains-a-hardcoded-credential)
- [Copeland XWEB EVO information disclosure in sysinfo.lua](https://junglewise.ai/threats/cve-2026-124011-xweb-evo-5-6-2-through-5-8-8-contains-an-information-disclosure)