CVE-2026-44693 | BDVDB-2026-339487 Detail

pi-holeFTL

Description#

Pi-hole FTL is the core engine of the Pi-hole network-level advertisement and tracker blocker. Prior to version 6.6.1, Pi-hole FTL contains a race condition vulnerability in the HTTP session management subsystem, introduced with the v6.0 rewrite of the embedded CivetWeb-based web server. This issue has been patched in version 6.6.1.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

References#

Exploit#

No public exploit known

History#

Version 12026-06-10Record published in the CVE List.
Version 22026-06-12Most recent update recorded in the CVE List.

Published

Published: 2026-06-10
Last modified: 2026-06-12

Vendor information

Vendor: pi-hole
Product: FTL

All pi-hole vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 22.1.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Race Condition

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 6.6.1
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).