Remote Code Execution Vulnerability in Pi-hole FTL Engine
CVE-2026-35519

8.8HIGH

Key Information:

Vendor

Pi-hole

Status
Ftl
Vendor
CVE Published:
7 April 2026

What is CVE-2026-35519?

The Pi-hole FTL engine, responsible for DNS handling within the Pi-hole ecosystem, exposes a Remote Code Execution vulnerability in its DNS host record configuration parameter. This flaw, present in versions 6.0 through just before 6.6, allows an attacker with valid authentication to manipulate dnsmasq configuration directives via newline characters. Such exploitation can lead to command execution on the host system, posing significant security risks. Users are encouraged to upgrade to version 6.6 to mitigate this issue.

Affected Version(s)

FTL >= 6.0, < 6.6

References

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

.