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Vulnerability record · CVE-2026-44693 · published 10 June 2026

CVE-2026-44693: Race condition vulnerability

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.

8.8 CVSS 3.1 High EPSS 0.34% · top 74.9% CWE-362 · Race condition Deferred
8.8CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
23 Jul 2026Last modified by NVD

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

References

LinkTags
https://github.com/pi-hole/FTL/releases/tag/v6.6.1
https://github.com/pi-hole/FTL/security/advisories/GHSA-9ff5-f3v5-2xc7
https://github.com/pi-hole/FTL/security/advisories/GHSA-9ff5-f3v5-2xc7

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Source: NIST National Vulnerability Database (record CVE-2026-44693), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.