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CVE-2026-41236— Froxlor has privilege escalation in SSH key synchronization via symlinked `authorized_keys` path

Quick assessment

Affected
froxlor froxlor
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Froxlor是Froxlor团队的一套轻量级服务器管理软件。 Froxlor 2.3.6版本存在后置链接漏洞，该漏洞源于SSH密钥同步路径中存在符号链接跟随缺陷，可能导致root SSH访问。

CVSS 8.8 · High EPSS 0.58% · P46

Affected Version Matrix 1

VendorProduct Version RangeStatus
froxlor froxlor = 2.3.6 affected
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I. Basic Information for CVE-2026-41236

Vulnerability Information
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Vulnerability Title
Froxlor has privilege escalation in SSH key synchronization via symlinked `authorized_keys` path
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Froxlor 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Froxlor是Froxlor团队的一套轻量级服务器管理软件。 Froxlor 2.3.6版本存在后置链接漏洞，该漏洞源于SSH密钥同步路径中存在符号链接跟随缺陷，可能导致root SSH访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
froxlor froxlor = 2.3.6 -

II. Public POCs for CVE-2026-41236

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 8511 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-41236

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Vendor Advisories for CVE-2026-41236 (1)

Vendor Pages for CVE-2026-41236 (1)

Same Patch Batch · froxlor · 2026-06-04 · 4 CVEs total

CVE-2026-41234 7.6 HIGH Froxlor: BIND Zone File Injection via TXT Record Content
CVE-2026-41235 Froxlor has an authorization bypass in FTP shell assignment via missing server-side `avail
CVE-2026-41237 Froxlor has an incomplete fix for CVE-2026-30932

IV. Related Vulnerabilities

Same product: froxlor
Same vendor: froxlor
Same weakness: CWE-59

V. Comments for CVE-2026-41236

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