Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-72841— luci-app-openvpn Path Traversal RCE via instance_name2

Quick assessment

Affected
openwrt luci
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.

OpenWRT LuCI是OpenWRT社区开源的一个网页管理界面。 OpenWRT LuCI存在输入验证错误漏洞，该漏洞源于文件上传期间对instance_name2参数验证不当，导致路径遍历，可能允许经过身份验证的攻击者在预期目录之外写入任意文件，并通过在系统目录中放置SSH密钥获取持久的root代码执行。

CVSS 9.9 · Critical EPSS 0.53% · P44

Affected Version Matrix 1

VendorProduct Version RangeStatus
openwrt luci any affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-72841

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
luci-app-openvpn Path Traversal RCE via instance_name2
Source: CVE Program / CVE List V5
Vulnerability Description
luci-app-openvpn fails to properly validate the instance_name2 parameter during file upload, allowing authenticated users to perform path traversal and write arbitrary files outside the intended directory. Attackers can upload malicious payloads to gain persistent root code execution by placing SSH keys in system directories accessible on reboot.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
OpenWRT LuCI 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenWRT LuCI是OpenWRT社区开源的一个网页管理界面。 OpenWRT LuCI存在输入验证错误漏洞，该漏洞源于文件上传期间对instance_name2参数验证不当，导致路径遍历，可能允许经过身份验证的攻击者在预期目录之外写入任意文件，并通过在系统目录中放置SSH密钥获取持久的root代码执行。
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
openwrt luci - -

II. Public POCs for CVE-2026-72841

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9568 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-2026-72841

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-72841 (2)

Same Patch Batch · openwrt · 2026-08-13 · 3 CVEs total

CVE-2026-72842 9.9 CRITICAL OpenWrt luci-app-lxc ACL Inconsistency Authentication Bypass
CVE-2026-72840 8.8 HIGH OpenWrt LuCI luci-mod-system-mounts ACL Root RCE via Crontab Write

IV. Related Vulnerabilities

Same product: luci
Same vendor: openwrt
Same weakness: CWE-73

V. Comments for CVE-2026-72841

No comments yet

Leave a comment