CVE-2026-44693

Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer

State
Published
Severity
8.8 High
Published
Jun 10, 2026
Updated
Jun 12, 2026
Reserved
May 7, 2026

Read the record on cve.org

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.

Scores

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

Weaknesses

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

ProductVersions
FTLpi-hole
  • < 6.6.1Affected

References

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