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88 vulnerabilities by pi-hole
CVE-2026-44693 (GCVE-0-2026-44693)
Vulnerability from nvd – Published: 2026-06-10 22:11 – Updated: 2026-06-12 03:55
VLAI
Title
Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer
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.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/pi-hole/FTL/releases/tag/v6.6.1 | x_refsource_MISC |
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CVE-2026-41489 (GCVE-0-2026-41489)
Vulnerability from nvd – Published: 2026-05-11 20:21 – Updated: 2026-05-13 14:39
VLAI
Title
Pi-hole: Local privilege escalation via config-controlled path in root-executed service hooks
Summary
Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to before Core 6.4.2 and FTL 6.6.1, two shell scripts executed as root by systemd (pihole-FTL-prestart.sh and pihole-FTL-poststop.sh) read the files.pid path from this config without validation and use it in privileged file operations (install and rm -f). By writing an arbitrary path into files.pid, an attacker with pihole privilege can cause root to delete and then recreate any file on the system outside the ProtectSystem=full-restricted directories, gaining write access to it. On a default Pi-hole installation this yields local privilege escalation to root via SSH authorized keys manipulation. If /root/.ssh/authorized_keys does not exist (default on fresh installs), only ExecStartPre is required. If the file exists, ExecStopPost deletes it first, and the same restart triggers both hooks in sequence. This vulnerability is fixed in Core 6.4.2 and FTL 6.6.1.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/pi-hole/security/advis… | x_refsource_CONFIRM |
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CVE-2026-39849 (GCVE-0-2026-39849)
Vulnerability from nvd – Published: 2026-05-05 20:50 – Updated: 2026-05-08 14:12
VLAI
Title
Pi-hole FTL remote code execution via newline injection in dns.interface configuration
Summary
Pi-hole FTL is the core engine of the Pi-hole network-level advertisement and tracker blocker. In versions before 6.6.1, the `dns.interface` configuration field in Pi-hole FTL accepted newline characters without validation, allowing an attacker to inject arbitrary directives into the generated dnsmasq configuration file. On installations with no admin password set (the default for many deployments), the configuration API is fully accessible without credentials, allowing a network-adjacent attacker to inject the payload, enable the built-in DHCP server, and achieve arbitrary command execution on the host the next time any device on the network requests a DHCP lease. The injected value is persisted to /etc/pihole/pihole.toml and survives restarts. The strncpy in the code path limits the total interface field to 31 bytes, but payloads such as wlan0\ndhcp-script=/tmp/p fit within this constraint. The dnsmasq config validation introduced in FTL 6.6 only checks syntactic validity, so valid directives injected via newline pass validation successfully. This issue has been fixed in version 6.6.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/pi-hole/FTL/commit/0c46e4ec7fe… | x_refsource_MISC |
| https://github.com/pi-hole/FTL/releases/tag/v6.6.1 | x_refsource_MISC |
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CVE-2026-35521 (GCVE-0-2026-35521)
Vulnerability from nvd – Published: 2026-04-07 15:20 – Updated: 2026-04-07 18:21
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.hosts Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DHCP hosts configuration parameter (dhcp.hosts). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35520 (GCVE-0-2026-35520)
Vulnerability from nvd – Published: 2026-04-07 15:19 – Updated: 2026-04-09 14:35
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.leaseTime Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DHCP lease time configuration parameter (dhcp.leaseTime). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35519 (GCVE-0-2026-35519)
Vulnerability from nvd – Published: 2026-04-07 15:18 – Updated: 2026-04-09 16:19
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.hostRecord Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DNS host record configuration parameter (dns.hostRecord). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
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CVE-2026-35518 (GCVE-0-2026-35518)
Vulnerability from nvd – Published: 2026-04-07 15:17 – Updated: 2026-04-08 14:55
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.cnameRecords Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DNS CNAME records configuration parameter (dns.cnameRecords). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
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CVE-2026-35517 (GCVE-0-2026-35517)
Vulnerability from nvd – Published: 2026-04-07 15:16 – Updated: 2026-04-07 18:19
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.upstreams Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the upstream DNS servers configuration parameter (dns.upstreams). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35491 (GCVE-0-2026-35491)
Vulnerability from nvd – Published: 2026-04-07 15:00 – Updated: 2026-04-07 17:52
VLAI
Title
Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33727 (GCVE-0-2026-33727)
Vulnerability from nvd – Published: 2026-04-06 15:02 – Updated: 2026-04-07 13:06
VLAI
Title
Pi-hole has a Local Privilege Escalation (post-compromise, pihole -> root).
Summary
Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Version 6.4 has a local privilege-escalation vulnerability allows code execution as root from the low-privilege pihole account. Important context: the pihole account uses nologin, so this is not a direct interactive-login issue. However, nologin does not prevent code from running as UID pihole if a Pi-hole component is compromised. In that realistic post-compromise scenario, attacker-controlled content in /etc/pihole/versions is sourced by root-run Pi-hole scripts, leading to root code execution. This vulnerability is fixed in 6.4.1.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/pi-hole/security/advis… | x_refsource_CONFIRM |
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CVE-2026-33405 (GCVE-0-2026-33405)
Vulnerability from nvd – Published: 2026-04-06 15:23 – Updated: 2026-04-06 18:37
VLAI
Title
Pi-hole has a Stored HTML Injection in queries.js
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, the formatInfo() function in queries.js renders data.upstream, data.client.ip, and data.ede.text into HTML without escaping when a user expands a query row in the Query Log, enabling stored HTML injection. JavaScript execution is blocked by the server's CSP (script-src 'self'). The same fields are properly escaped in the table view (rowCallback), confirming the omission was an oversight. This vulnerability is fixed in 6.5.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33406 (GCVE-0-2026-33406)
Vulnerability from nvd – Published: 2026-04-06 14:50 – Updated: 2026-04-07 14:08
VLAI
Title
Pi-hole has a Stored HTML attribute injection
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, configuration values from the /api/config endpoint are placed directly into HTML value="" attributes without escaping in settings-advanced.js, enabling HTML attribute injection. A double quote in any config value breaks out of the attribute context. JavaScript execution is blocked by the server's CSP (script-src 'self'), but injected attributes can alter element styling for UI redressing. The primary attack vector is importing a malicious teleporter backup, which bypasses per-field server-side validation. This vulnerability is fixed in 6.5.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33404 (GCVE-0-2026-33404)
Vulnerability from nvd – Published: 2026-04-06 14:48 – Updated: 2026-04-06 18:39
VLAI
Title
Pi-hole has a Stored XSS / HTML injection in the Network page/Dashboard
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, client hostnames and IP addresses from the FTL database are rendered into the DOM without escaping in network.js (Network page) and charts.js/index.js (Dashboard chart tooltips). While upstream validation in dnsmasq and FTL blocks HTML characters via normal DHCP/DNS paths, the web UI performs no output escaping — an inconsistency with other fields in the same file that are properly escaped. This vulnerability is fixed in 6.5.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33403 (GCVE-0-2026-33403)
Vulnerability from nvd – Published: 2026-04-06 14:48 – Updated: 2026-04-06 15:05
VLAI
Title
Pi-hole has a Reflected XSS / HTML injection in taillog.js
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, a reflected DOM-based XSS vulnerability in taillog.js allows an unauthenticated attacker to inject arbitrary HTML into the Pi-hole admin interface by crafting a malicious URL. The file query parameter is interpolated into an innerHTML assignment without escaping. Because the Content-Security-Policy is missing the form-action directive, injected <form> elements can exfiltrate credentials to an external origin. This vulnerability is fixed in 6.5.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33765 (GCVE-0-2026-33765)
Vulnerability from nvd – Published: 2026-03-27 19:46 – Updated: 2026-04-02 13:04
VLAI
Title
Pi-hole Web Interface has a Command Injection Vulnerability
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. Versions prior to 6.0 have a critical OS Command Injection vulnerability in the savesettings.php file. The application takes the user-controlled $_POST['webtheme'] parameter and concatenates it directly into a system command executed via PHP's exec() function. Since the input is neither sanitized nor validated before being passed to the shell, an attacker can append arbitrary system commands to the intended pihole command. Furthermore, because the command is executed with sudo privileges, the injected commands will run with elevated (likely root) privileges. Version 6.0 patches the issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-44693 (GCVE-0-2026-44693)
Vulnerability from cvelistv5 – Published: 2026-06-10 22:11 – Updated: 2026-06-12 03:55
VLAI
Title
Pi-hole FTL: Unauthenticated Session Hijacking via Race Condition on Global Session Buffer
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.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/pi-hole/FTL/releases/tag/v6.6.1 | x_refsource_MISC |
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CVE-2026-41489 (GCVE-0-2026-41489)
Vulnerability from cvelistv5 – Published: 2026-05-11 20:21 – Updated: 2026-05-13 14:39
VLAI
Title
Pi-hole: Local privilege escalation via config-controlled path in root-executed service hooks
Summary
Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to before Core 6.4.2 and FTL 6.6.1, two shell scripts executed as root by systemd (pihole-FTL-prestart.sh and pihole-FTL-poststop.sh) read the files.pid path from this config without validation and use it in privileged file operations (install and rm -f). By writing an arbitrary path into files.pid, an attacker with pihole privilege can cause root to delete and then recreate any file on the system outside the ProtectSystem=full-restricted directories, gaining write access to it. On a default Pi-hole installation this yields local privilege escalation to root via SSH authorized keys manipulation. If /root/.ssh/authorized_keys does not exist (default on fresh installs), only ExecStartPre is required. If the file exists, ExecStopPost deletes it first, and the same restart triggers both hooks in sequence. This vulnerability is fixed in Core 6.4.2 and FTL 6.6.1.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/pi-hole/security/advis… | x_refsource_CONFIRM |
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CVE-2026-39849 (GCVE-0-2026-39849)
Vulnerability from cvelistv5 – Published: 2026-05-05 20:50 – Updated: 2026-05-08 14:12
VLAI
Title
Pi-hole FTL remote code execution via newline injection in dns.interface configuration
Summary
Pi-hole FTL is the core engine of the Pi-hole network-level advertisement and tracker blocker. In versions before 6.6.1, the `dns.interface` configuration field in Pi-hole FTL accepted newline characters without validation, allowing an attacker to inject arbitrary directives into the generated dnsmasq configuration file. On installations with no admin password set (the default for many deployments), the configuration API is fully accessible without credentials, allowing a network-adjacent attacker to inject the payload, enable the built-in DHCP server, and achieve arbitrary command execution on the host the next time any device on the network requests a DHCP lease. The injected value is persisted to /etc/pihole/pihole.toml and survives restarts. The strncpy in the code path limits the total interface field to 31 bytes, but payloads such as wlan0\ndhcp-script=/tmp/p fit within this constraint. The dnsmasq config validation introduced in FTL 6.6 only checks syntactic validity, so valid directives injected via newline pass validation successfully. This issue has been fixed in version 6.6.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/pi-hole/FTL/commit/0c46e4ec7fe… | x_refsource_MISC |
| https://github.com/pi-hole/FTL/releases/tag/v6.6.1 | x_refsource_MISC |
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CVE-2026-35521 (GCVE-0-2026-35521)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:20 – Updated: 2026-04-07 18:21
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.hosts Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DHCP hosts configuration parameter (dhcp.hosts). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35520 (GCVE-0-2026-35520)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:19 – Updated: 2026-04-09 14:35
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dhcp.leaseTime Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DHCP lease time configuration parameter (dhcp.leaseTime). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
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CVE-2026-35519 (GCVE-0-2026-35519)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:18 – Updated: 2026-04-09 16:19
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.hostRecord Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DNS host record configuration parameter (dns.hostRecord). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35518 (GCVE-0-2026-35518)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:17 – Updated: 2026-04-08 14:55
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.cnameRecords Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DNS CNAME records configuration parameter (dns.cnameRecords). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35517 (GCVE-0-2026-35517)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:16 – Updated: 2026-04-07 18:19
VLAI
Title
Pi-hole FTL affected by Remote Code Execution (RCE) via dns.upstreams Newline Injection
Summary
FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the upstream DNS servers configuration parameter (dns.upstreams). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-35491 (GCVE-0-2026-35491)
Vulnerability from cvelistv5 – Published: 2026-04-07 15:00 – Updated: 2026-04-07 17:52
VLAI
Title
Pi-hole FTL: CLI API sessions can import Teleporter archives and modify configuration
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/FTL/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33405 (GCVE-0-2026-33405)
Vulnerability from cvelistv5 – Published: 2026-04-06 15:23 – Updated: 2026-04-06 18:37
VLAI
Title
Pi-hole has a Stored HTML Injection in queries.js
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, the formatInfo() function in queries.js renders data.upstream, data.client.ip, and data.ede.text into HTML without escaping when a user expands a query row in the Query Log, enabling stored HTML injection. JavaScript execution is blocked by the server's CSP (script-src 'self'). The same fields are properly escaped in the table view (rowCallback), confirming the omission was an oversight. This vulnerability is fixed in 6.5.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
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CVE-2026-33727 (GCVE-0-2026-33727)
Vulnerability from cvelistv5 – Published: 2026-04-06 15:02 – Updated: 2026-04-07 13:06
VLAI
Title
Pi-hole has a Local Privilege Escalation (post-compromise, pihole -> root).
Summary
Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Version 6.4 has a local privilege-escalation vulnerability allows code execution as root from the low-privilege pihole account. Important context: the pihole account uses nologin, so this is not a direct interactive-login issue. However, nologin does not prevent code from running as UID pihole if a Pi-hole component is compromised. In that realistic post-compromise scenario, attacker-controlled content in /etc/pihole/versions is sourced by root-run Pi-hole scripts, leading to root code execution. This vulnerability is fixed in 6.4.1.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/pi-hole/security/advis… | x_refsource_CONFIRM |
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CVE-2026-33406 (GCVE-0-2026-33406)
Vulnerability from cvelistv5 – Published: 2026-04-06 14:50 – Updated: 2026-04-07 14:08
VLAI
Title
Pi-hole has a Stored HTML attribute injection
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, configuration values from the /api/config endpoint are placed directly into HTML value="" attributes without escaping in settings-advanced.js, enabling HTML attribute injection. A double quote in any config value breaks out of the attribute context. JavaScript execution is blocked by the server's CSP (script-src 'self'), but injected attributes can alter element styling for UI redressing. The primary attack vector is importing a malicious teleporter backup, which bypasses per-field server-side validation. This vulnerability is fixed in 6.5.
Severity
5.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33404 (GCVE-0-2026-33404)
Vulnerability from cvelistv5 – Published: 2026-04-06 14:48 – Updated: 2026-04-06 18:39
VLAI
Title
Pi-hole has a Stored XSS / HTML injection in the Network page/Dashboard
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, client hostnames and IP addresses from the FTL database are rendered into the DOM without escaping in network.js (Network page) and charts.js/index.js (Dashboard chart tooltips). While upstream validation in dnsmasq and FTL blocks HTML characters via normal DHCP/DNS paths, the web UI performs no output escaping — an inconsistency with other fields in the same file that are properly escaped. This vulnerability is fixed in 6.5.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33403 (GCVE-0-2026-33403)
Vulnerability from cvelistv5 – Published: 2026-04-06 14:48 – Updated: 2026-04-06 15:05
VLAI
Title
Pi-hole has a Reflected XSS / HTML injection in taillog.js
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, a reflected DOM-based XSS vulnerability in taillog.js allows an unauthenticated attacker to inject arbitrary HTML into the Pi-hole admin interface by crafting a malicious URL. The file query parameter is interpolated into an innerHTML assignment without escaping. Because the Content-Security-Policy is missing the form-action directive, injected <form> elements can exfiltrate credentials to an external origin. This vulnerability is fixed in 6.5.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-33765 (GCVE-0-2026-33765)
Vulnerability from cvelistv5 – Published: 2026-03-27 19:46 – Updated: 2026-04-02 13:04
VLAI
Title
Pi-hole Web Interface has a Command Injection Vulnerability
Summary
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. Versions prior to 6.0 have a critical OS Command Injection vulnerability in the savesettings.php file. The application takes the user-controlled $_POST['webtheme'] parameter and concatenates it directly into a system command executed via PHP's exec() function. Since the input is neither sanitized nor validated before being passed to the shell, an attacker can append arbitrary system commands to the intended pihole command. Furthermore, because the command is executed with sudo privileges, the injected commands will run with elevated (likely root) privileges. Version 6.0 patches the issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/web/security/advisorie… | x_refsource_CONFIRM |
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