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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-59"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41236.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "= 2.3.6"
},
{
"last_affected": "= 2.3.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
},
{
"original_tag": "2.3.7",
"range": [
{
"fixed": "070e537744f20d30743a22e82f783e81893d7e54"
}
],
"source": "REFERENCES_TAG"
}
]
}