Is CVE-2026-35491 actively exploited?

CVE-2026-35491 has no public evidence of in-the-wild exploitation as of 2026-04-17.

What is the CVSS score for CVE-2026-35491?

CVE-2026-35491 has a CVSS score of 6.1 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

How do I patch CVE-2026-35491?

Patch guidance is available from pi-hole security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-35491.

CVE-2026-35491 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: low
Weaknesses: CWE-863 · Incorrect Authorization

Metadata

Primary Vendor: PI-HOLE
Published: 4/7/2026
Last Modified: 4/17/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-35491

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary