Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M
CVE-2026-44693Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer
High 8.8
In plain English
A high-severity race condition in FTL from pi-hole. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 77.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://github.com/pi-hole/FTL/security/advisories/GHSA-9ff5-f3v5-2xc7 x_refsource_CONFIRM
- https://github.com/pi-hole/FTL/releases/tag/v6.6.1 x_refsource_MISC