Vulnerability Description
Froxlor is open source server administration software. Version 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchronization path used for customer FTP users. The provisioning code appends public keys to `~/.ssh/authorized_keys` under a customer-controlled home directory without verifying that the target path is not a symbolic link. If an attacker controls a shell-enabled customer account and can modify files inside the assigned home directory, the attacker can replace `~/.ssh/authorized_keys` with a symlink to `/root/.ssh/authorized_keys`. When Froxlor's privileged cron task later synchronizes SSH keys, it appends the attacker-supplied key into root's authorized key file, resulting in root SSH access. Version 2.3.7 contains a patch.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/froxlor/froxlor/releases/tag/2.3.7
- https://github.com/froxlor/froxlor/security/advisories/GHSA-mq5v-pxpm-8jw2
- https://github.com/froxlor/froxlor/security/advisories/GHSA-mq5v-pxpm-8jw2
FAQ
What is CVE-2026-41236?
CVE-2026-41236 is a vulnerability with a CVSS score of 8.8 (HIGH). Froxlor is open source server administration software. Version 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchronization path used for customer FTP users. The provisioning code...
How severe is CVE-2026-41236?
CVE-2026-41236 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-41236?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.