CVE-2026-35491CWE-863

Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration

Medium · published April 7, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
6.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00173 · 6.4th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-04-07T15:00Z
EPSS history
Timeline
  • 07 APR 15:00Z
    Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration
    cvelistv5