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VULNERABILITIES

CVE-2026-35517 Details

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, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the upstream DNS servers configuration parameter (dns.upstreams). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/pi-hole/FTL/security/advisories/GHSA-23w8-7333-p9fj [email protected]ExploitVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')[email protected]
CWE-93Improper Neutralization of CRLF Sequences ('CRLF Injection')[email protected]

Affected Products

ProductVersions
pi-hole ftldns
>= 6.0, <= 6.5

CPE

  • cpe:2.3:a:pi-hole:ftldns:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-35517
NVD Published Date:
Apr 7, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]