CVE-2026-35517
Last modified
CVE-2026-35517 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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). EPSS estimates a 0.86% chance of exploitation in the next 30 days.
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pi-Hole | Ftldns | >= 6.0, <= 6.5 |
References
- https://github.com/pi-hole/FTL/security/advisories/GHSA-23w8-7333-p9fjExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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