HOMEVULNERABILITIESCVE-2026-35491
MEDIUM

CVE-2026-35491

CWE-863Published: April 7, 2026· Updated: Apr 8, 2026

6.1
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.7th

Official 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, Pi-hole FTL supports a CLI password feature (webserver.api.cli_pw) that creates “CLI” API sessions intended to be read-only for configuration changes. While /api/config correctly blocks CLI sessions from mutating configuration, /api/teleporter allowed Teleporter imports for CLI sessions, enabling a CLI-scoped session to overwrite configuration via a Teleporter archive (authorization bypass). This vulnerability is fixed in 6.6.

NVD Source

Technical Analysis

CVE-2026-35491 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (1)

→
https://github.com/pi-hole/FTL/security/advisories/GHSA-r7g8-3fj7-m5qq

Quick Facts

CVE IDCVE-2026-35491
CVSS Score6.1 / 10
SeverityMEDIUM
WeaknessCWE-863
CISA KEVNo
EPSS (30d)0.01%
PublishedApr 7, 2026

Related CVEs (CWE-863)

CVE-2026-48286
10.0
CVE-2026-48303
10.0
CVE-2026-44330
10.0
CVE-2026-41283
9.9
CVE-2026-43948
9.9
CVE-2026-28466
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-35491 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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