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TI-2026-32584 Aliases CVE-2026-44693

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

Priority HIGH 73CWE-362Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00293 22nd percentileScored 2026-11-07
Fix Fixed FTL (pi-hole): 6.6.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Pi-holeFTLbefore 6.6.16.6.1Patch availableCNA
  • FTL VendorPi-hole Affected before 6.6.1 Fixed in 6.6.1 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:pi-hole:ftldns:*:*:*:*:*:*:*:*——Pi-hole
  • cpe:2.3:a:pi-hole:ftldns:*:*:*:*:*:*:*:* Versions — — ·Pi-hole

Remediation

  • Fix · CNA FTL (pi-hole) Fixed in 6.6.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44693

References

Other 2

  • TI-2020-07073 Pi-hole Web v4.3.2 (aka AdminLTE) allows Remote Code Execution by privileged dashboard… KEVCVSS 3.1HIGH 7.2
  • TI-2020-08981 The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload… CVSS 3.1HIGH 8.8
  • TI-2026-36901 Pi-hole: Local privilege escalation from `pihole` user to root via `/etc/pihole/logrotate` CVSS 3.1HIGH 8.8
  • TI-2026-30076 Pi-hole: Local privilege escalation via config-controlled path in root-executed service hooks CVSS 3.1HIGH 8.8
  • TI-2026-28731 Pi-hole FTL remote code execution via newline injection in dns.interface configuration CVSS 4.0HIGH 8.7
  • TI-2026-27638 Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.hosts Newline Injection CVSS 3.1HIGH 8.8
See all 47 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences