{"id":"CVE-2026-41236","summary":"Froxlor has privilege escalation in SSH key synchronization via symlinked `authorized_keys` path","details":"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.","aliases":["GHSA-mq5v-pxpm-8jw2"],"modified":"2026-08-04T11:50:54.464274459Z","published":"2026-06-04T17:52:10.066Z","database_specific":{"cwe_ids":["CWE-59"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41236.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/froxlor/froxlor/releases/tag/2.3.7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41236.json"},{"type":"ADVISORY","url":"https://github.com/froxlor/froxlor/security/advisories/GHSA-mq5v-pxpm-8jw2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41236"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/froxlor/froxlor","events":[{"introduced":"d32aa3567c8eb033bbc8667bfca2969f5cdb199f"},{"last_affected":"d32aa3567c8eb033bbc8667bfca2969f5cdb199f"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"= 2.3.6"},{"last_affected":"= 2.3.6"}]}}],"versions":["= 2.3.6","2.3.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41236.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}