Vulnerability · Published Apr 7, 2026 · Assigned by GitHub_M

CVE-2026-35491Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration

Medium 6.1

In plain English

A medium-severity incorrect authorization in FTL from pi-hole. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 94.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
pi-hole	FTL	>= 6.0, < 6.6

Weakness: CWE-863 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

References

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