CVE-2026-35520
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.leaseTime Newline Injection
CVSS Score
8.8
EPSS Score
0.2%
EPSS Percentile
42th
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 DHCP lease time configuration parameter (dhcp.leaseTime). 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.
| CWE | CWE-78 CWE-93 |
| Vendor | pi-hole |
| Product | ftl |
| Published | Apr 7, 2026 |
| Last Updated | Apr 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
pi-hole / FTL
>= 6.0, < 6.6