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I. Basic Information for CVE-2026-35491
Vulnerability Information

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Vulnerability Title
Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration
Source: NVD (National Vulnerability Database)
Vulnerability Description
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, Pi-hole FTL supports a CLI password feature (webserver.api.cli_pw) that creates “CLI” API sessions intended to be read-only for configuration changes. While /api/config correctly blocks CLI sessions from mutating configuration, /api/teleporter allowed Teleporter imports for CLI sessions, enabling a CLI-scoped session to overwrite configuration via a Teleporter archive (authorization bypass). This vulnerability is fixed in 6.6.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
FTL 安全漏洞
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 6.0至6.6之前版本存在安全漏洞,该漏洞源于/api/teleporter允许CLI会话进行Teleporter导入,可能导致CLI范围的会话通过Teleporter存档覆盖配置,从而绕过授权。
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
VendorProductAffected VersionsCPESubscribe
pi-holeFTL >= 6.0, < 6.6 -
II. Public POCs for CVE-2026-35491
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III. Intelligence Information for CVE-2026-35491
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IV. Related Vulnerabilities
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