CVE-2026-35491

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

07/04/2026

Last modified:

07/04/2026

Description

FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole&#39;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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): Low

Base Score 3.x

6.10

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qq