Remote Code Execution Vulnerability in Pi-hole FTL by Pi-hole
CVE-2026-35517

8.8HIGH

Key Information:

Vendor

Pi-hole

Status
Ftl
Vendor
CVE Published:
7 April 2026

What is CVE-2026-35517?

The Pi-hole FTL engine contains a Remote Code Execution vulnerability in the dns.upstreams configuration parameter. An authenticated attacker can exploit this issue by injecting arbitrary dnsmasq configuration directives through newline characters. This malicious action can lead to command execution on the underlying system, potentially compromising its integrity. The vulnerability is addressed in version 6.6.

Affected Version(s)

FTL >= 6.0, < 6.6

References

https://github.com/pi-hole/FTL/security/advisories/GHSA-2...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.