CVE-2026-44693 Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer
An attacker can hijack user sessions in Pi-hole FTL via a race condition in the web server, leading to unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-44693?
CVE-2026-44693 is a high-severity vulnerability in pi-hole FTL, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-362
Which versions are affected by CVE-2026-44693?
How do I fix CVE-2026-44693?
No fix has been published for CVE-2026-44693 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-44693 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44693 exists.
Sources
Also known as GHSA-9ff5-f3v5-2xc7.