CVE-2026-57999

High

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductOpenwrt Luci-app-tailscale-community

PublishedJun 29, 2026

First seenJun 29, 2026

Weakness typeCWE-78OS command injection

How to fix

Vendor advisories

github.com/openwrt/luci/security/advisories/GHSA-xwc5-mx58-rh35

Affected products

Product	Affected versions	Fixed in
openwrt luci-app-tailscale-community	v ≤ 0.11.1	—

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