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CVE-2026-57999— luci-app-tailscale-community - Command Injection via tailscale.do_login RPC

Quick assessment

Affected
openwrt luci-app-tailscale-community
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社区开源的一款路由器配置界面。 OpenWRT luci 0.11.1及之前版本存在命令注入漏洞，该漏洞源于tailscale.do_login RPC方法中用户控制的loginserver和loginserver_authkey参数在双引号shell命令中引用不当，允许外部shell在参数处理前评估shell替换，可能导致认证用户以root权限执行任意命令。

CVSS 8.8 · High EPSS 2.28% · P83

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
openwrt luci-app-tailscale-community ≤ 0.11.1 affected
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I. Basic Information for CVE-2026-57999

Vulnerability Information
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Vulnerability Title
luci-app-tailscale-community - Command Injection via tailscale.do_login RPC
Source: CVE Program / CVE List V5
Vulnerability Description
luci-app-tailscale-community contains a command injection vulnerability in the tailscale.do_login RPC method that allows authenticated users to execute arbitrary commands as root. The vulnerability exists because user-controlled loginserver and loginserver_authkey parameters are improperly quoted within a double-quoted shell command, allowing shell substitutions like $() to be evaluated by the outer shell before argument processing.
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
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenWRT luci 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenWRT luci是OpenWRT社区开源的一款路由器配置界面。 OpenWRT luci 0.11.1及之前版本存在命令注入漏洞，该漏洞源于tailscale.do_login RPC方法中用户控制的loginserver和loginserver_authkey参数在双引号shell命令中引用不当，允许外部shell在参数处理前评估shell替换，可能导致认证用户以root权限执行任意命令。
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-app-tailscale-community 0 ~ 0.11.1 -

II. Public POCs for CVE-2026-57999

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 13749 chars
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In-depth vulnerability mechanism
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-57999

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Vendor Advisories for CVE-2026-57999 (2)

IV. Related Vulnerabilities

Same vendor: openwrt
Same weakness: CWE-78

V. Comments for CVE-2026-57999

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