PT-2026-30885 · Pi-Hole · Pihole-Ftl+1

T0X1Cx · CVE-2026-35520 · Published 2026-04-07 · Updated 2026-04-07

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FTLDNS (pihole-FTL) versions 6.0 through 6.5

Description The Pi-hole FTL engine contains a Remote Code Execution (RCE) issue in the DHCP lease time configuration parameter (dhcp.leaseTime). An authenticated attacker can inject arbitrary dnsmasq configuration directives through newline characters, leading to command execution on the system.

Recommendations Update to version 6.6 or later.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

CWE-93

Related Identifiers

CVE-2026-35520

GHSA-FQV2-QHFH-GHCJ

Affected Products

Ftldns

Pihole-Ftl

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35520.json · Exploit
• 🔥 https://github.com/pi-hole/FTL/security/advisories/GHSA-fqv2-qhfh-ghcj · Exploit
• https://osv.dev/vulnerability/CVE-2026-35520 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35520 · Security Note
• https://twitter.com/CVEnew/status/2041603207944704393 · Twitter Post