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.

• CWE-863

• https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qqExploit, Mitigation, Vendor Advisory

Published

Apr 7, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

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