CVE-2026-44693: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pi-hole FTL
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.
AI Analysis
Technical Summary
CVE-2026-44693 is a race condition vulnerability (CWE-362) in Pi-hole FTL's HTTP session management subsystem. It arises from improper synchronization in concurrent execution of shared resources, introduced with the v6.0 rewrite of the embedded CivetWeb-based web server. This flaw affects all Pi-hole FTL versions before 6.6.1 and has a CVSS 3.1 score of 8.8, indicating high severity. The vulnerability has been patched in version 6.6.1.
Potential Impact
Successful exploitation of this race condition could lead to high impact on confidentiality, integrity, and availability of the affected system, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). This means an attacker can remotely exploit the vulnerability with low complexity and no privileges but requires user interaction. The vulnerability could allow unauthorized access or manipulation of HTTP sessions, potentially compromising the Pi-hole FTL service.
Mitigation Recommendations
A fix is available in Pi-hole FTL version 6.6.1. Users should upgrade to version 6.6.1 or later to remediate this vulnerability. No additional mitigation guidance is provided or required beyond applying the official patch.
CVE-2026-44693: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pi-hole FTL
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.
CVSS v3.1
Score 8.8high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-44693 is a race condition vulnerability (CWE-362) in Pi-hole FTL's HTTP session management subsystem. It arises from improper synchronization in concurrent execution of shared resources, introduced with the v6.0 rewrite of the embedded CivetWeb-based web server. This flaw affects all Pi-hole FTL versions before 6.6.1 and has a CVSS 3.1 score of 8.8, indicating high severity. The vulnerability has been patched in version 6.6.1.
Potential Impact
Successful exploitation of this race condition could lead to high impact on confidentiality, integrity, and availability of the affected system, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). This means an attacker can remotely exploit the vulnerability with low complexity and no privileges but requires user interaction. The vulnerability could allow unauthorized access or manipulation of HTTP sessions, potentially compromising the Pi-hole FTL service.
Mitigation Recommendations
A fix is available in Pi-hole FTL version 6.6.1. Users should upgrade to version 6.6.1 or later to remediate this vulnerability. No additional mitigation guidance is provided or required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-07T17:07:09.315Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a29e5e331875706499a3987
Added to database: 6/10/2026, 10:32:03 PM
Last enriched: 6/10/2026, 10:45:44 PM
Last updated: 6/10/2026, 11:46:41 PM
Views: 6
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