CVE•Published 2026-04-07•Modified 2026-04-28•1 article on news•6 live references•NVD data
CVE-2026-35517Pi-hole · Ftldns
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
23
Exploit Prediction Scoring System · top 77% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-04-07
Modified 2026-04-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-35517Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Pi-hole Ftldns"All exposed Pi-hole Ftldns instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Ftldns"HTTP body or banner mentions "Ftldns" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-35517Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-35517Censys host search filtered to this CVE id.
grep.app
CVE-2026-35517Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-35517GitHub code search for direct mentions.
Google dork
"CVE-2026-35517" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.