CVE-2026-57999

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/openwrt/luci/security/advisories/GHSA-xwc5-mx58-rh35
https://www.vulncheck.com/advisories/luci-app-tailscale-community-command-injection-via-tailscale-do-login-rpc
https://github.com/openwrt/luci/security/advisories/GHSA-xwc5-mx58-rh35

Configurations

No configuration.

History

25 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) luci-app-tailscale-community contiene una vulnerabilidad de inyección de comandos en el método RPC tailscale.do_login que permite a usuarios autenticados ejecutar comandos arbitrarios como root. La vulnerabilidad existe porque los parámetros loginserver y loginserver_authkey, controlados por el usuario, no están correctamente entrecomillados dentro de un comando de shell con comillas dobles, lo que permite que las sustituciones de shell como $() sean evaluadas por el shell externo antes del procesamiento de argumentos.

Information

Published : 2026-06-29 19:16

Updated : 2026-10-25 21:10

NVD link : CVE-2026-57999

Mitre link : CVE-2026-57999

CVE.ORG link : CVE-2026-57999

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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