CVE-2026-44693
Received Received - Intake
Race Condition in Pi-hole FTL HTTP Session Management

Publication date: 2026-06-10

Last updated on: 2026-06-10

Assigner: GitHub, Inc.

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.
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Meta Information
Published
2026-06-10
Last Modified
2026-06-10
Generated
2026-06-11
AI Q&A
2026-06-11
EPSS Evaluated
N/A
NVD
CVE-2026-44693
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
pi-hole ftl to 6.6.1 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
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Executive Summary

The vulnerability in Pi-hole FTL is a race condition in the HTTP session management subsystem. It exists in versions prior to 6.6.1 and was introduced with the version 6.0 rewrite of the embedded CivetWeb-based web server. This race condition could allow unintended behavior during HTTP session handling.

Impact Analysis

This vulnerability has a high severity with a CVSS base score of 8.8, indicating it can have a significant impact. It can lead to high confidentiality, integrity, and availability impacts, meaning an attacker could potentially access sensitive data, alter data, or disrupt service availability through exploiting the race condition in the HTTP session management.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade Pi-hole FTL to version 6.6.1 or later, where the race condition in the HTTP session management subsystem has been patched.

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