CVE-2026-44693: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pi-hole FTL
Pi-hole FTL versions prior to 6.6.1 contain a race condition vulnerability in the HTTP session management subsystem. This flaw was introduced with the version 6.0 rewrite of the embedded CivetWeb-based web server. The vulnerability allows concurrent execution using a shared resource with improper synchronization, potentially leading to high impact on confidentiality, integrity, and availability. The 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, introduced in the v6.0 rewrite of the embedded CivetWeb-based web server. This concurrency issue allows improper synchronization when accessing shared resources, which can lead to significant security impacts. The vulnerability affects all Pi-hole FTL versions prior to 6.6.1 and has been addressed with a patch in version 6.6.1.
Potential Impact
The vulnerability has a CVSS 3.1 score of 8.8 (high severity) with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts confidentiality, integrity, and availability at a high level. Exploitation could allow attackers to compromise session management, potentially leading to unauthorized access or disruption of service.
Mitigation Recommendations
Upgrade Pi-hole FTL to version 6.6.1 or later, where this race condition vulnerability has been patched. No other mitigation guidance is provided or necessary as the issue is fixed in this official release.
CVE-2026-44693: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pi-hole FTL
Description
Pi-hole FTL versions prior to 6.6.1 contain a race condition vulnerability in the HTTP session management subsystem. This flaw was introduced with the version 6.0 rewrite of the embedded CivetWeb-based web server. The vulnerability allows concurrent execution using a shared resource with improper synchronization, potentially leading to high impact on confidentiality, integrity, and availability. The 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, introduced in the v6.0 rewrite of the embedded CivetWeb-based web server. This concurrency issue allows improper synchronization when accessing shared resources, which can lead to significant security impacts. The vulnerability affects all Pi-hole FTL versions prior to 6.6.1 and has been addressed with a patch in version 6.6.1.
Potential Impact
The vulnerability has a CVSS 3.1 score of 8.8 (high severity) with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts confidentiality, integrity, and availability at a high level. Exploitation could allow attackers to compromise session management, potentially leading to unauthorized access or disruption of service.
Mitigation Recommendations
Upgrade Pi-hole FTL to version 6.6.1 or later, where this race condition vulnerability has been patched. No other mitigation guidance is provided or necessary as the issue is fixed in this official release.
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: 06/10/2026, 22:32:03 UTC
Last enriched: 06/18/2026, 18:00:35 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 201
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