CVE-2026-35491

FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, Pi-hole FTL supports a CLI password feature (webserver.api.cli_pw) that creates “CLI” API sessions intended to be read-only for configuration changes. While /api/config correctly blocks CLI sessions from mutating configuration, /api/teleporter allowed Teleporter imports for CLI sessions, enabling a CLI-scoped session to overwrite configuration via a Teleporter archive (authorization bypass). This vulnerability is fixed in 6.6.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qq	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pi-hole:ftldns:*:*:*:*:*:*:*:*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) FTLDNS (pihole-FTL) proporciona una API interactiva y también genera estadísticas para la interfaz web de Pi-hole. Desde la 6.0 hasta antes de la 6.6, Pi-hole FTL soporta una característica de contraseña CLI (webserver.api.cli_pw) que crea sesiones de API ’CLI’ destinadas a ser de solo lectura para cambios de configuración. Mientras que /api/config bloquea correctamente las sesiones CLI de mutar la configuración, /api/teleporter permitía importaciones de Teleporter para sesiones CLI, permitiendo que una sesión con ámbito CLI sobrescribiera la configuración a través de un archivo de Teleporter (omisión de autorización). Esta vulnerabilidad está corregida en la 6.6.

Information

Published : 2026-04-07 16:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-35491

Mitre link : CVE-2026-35491

CVE.ORG link : CVE-2026-35491

JSON object : View

Products Affected

pi-hole

ftldns

CWE

CWE-863

Incorrect Authorization

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