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CVE-2026-44693— Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer

Quick assessment

Affected
pi-hole FTL
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FTL是Pi-hole开源的一个网络广告拦截与统计工具。 FTL 6.6.1之前版本存在竞争条件问题漏洞，该漏洞源于HTTP会话管理子系统中的竞争条件问题，可能导致攻击者利用该漏洞进行未授权操作。

CVSS 8.8 · High EPSS 0.29% · P21

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
pi-hole FTL < 6.6.1 affected
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I. Basic Information for CVE-2026-44693

Vulnerability Information
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Vulnerability Title
Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
FTL 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FTL是Pi-hole开源的一个网络广告拦截与统计工具。 FTL 6.6.1之前版本存在竞争条件问题漏洞，该漏洞源于HTTP会话管理子系统中的竞争条件问题，可能导致攻击者利用该漏洞进行未授权操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pi-hole FTL < 6.6.1 -

II. Public POCs for CVE-2026-44693

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 12760 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-44693

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Vendor Advisories for CVE-2026-44693 (1)

Vendor Pages for CVE-2026-44693 (1)

IV. Related Vulnerabilities

Same product: FTL
Same vendor: pi-hole
Same weakness: CWE-362

V. Comments for CVE-2026-44693

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