CVE Watch22 jul 2026

CVE-2026-41236

Froxlor is open source server administration software. Version 2.3.6 contains a symlink-following flaw in the root-owned SSH key synchroniza

CVSS

8.8

Alto

EPSS

0.4%

p30

KEV

—

Exploit Today

0-100

Publicado: 4 jun 2026 · Última mod.: 22 jul 2026 · CWE-59

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-08-202026-09-17

Descripción técnica

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.

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