Vulnerability Description
Froxlor is open source server administration software. Prior to 2.3.4, a typo in Froxlor's input validation code (== instead of =) completely disables email format checking for all settings fields declared as email type. This allows an authenticated admin to store arbitrary strings in the panel.adminmail setting. This value is later concatenated into a shell command executed as root by a cron job, where the pipe character | is explicitly whitelisted. The result is full root-level Remote Code Execution. This vulnerability is fixed in 2.3.4.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Froxlor | Froxlor | < 2.3.4 |
Related Weaknesses (CWE)
References
- https://github.com/froxlor/Froxlor/security/advisories/GHSA-33mp-8p67-xj7cExploitMitigationVendor Advisory
- https://github.com/froxlor/froxlor/commit/22249677107f8f39f8d4a238605641e87dab43Patch
- https://github.com/froxlor/froxlor/releases/tag/2.3.4Release Notes
FAQ
What is CVE-2026-26279?
CVE-2026-26279 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Froxlor is open source server administration software. Prior to 2.3.4, a typo in Froxlor's input validation code (== instead of =) completely disables email format checking for all settings fields dec...
How severe is CVE-2026-26279?
CVE-2026-26279 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-26279?
Check the references section above for vendor advisories and patch information. Affected products include: Froxlor Froxlor.