Improper Access Control

Caddy is vulnerable to Improper Access Control. The vulnerability is due to incorrect case-insensitive matching in the HTTP host request matcher when large host lists are configured, allowing attackers to modify the casing of the Host header and bypass host-based routing or associated access...

Linux Distros Unpatched Vulnerability : CVE-2026-27588

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, b...

CVE-2026-27588

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, but when configured with a large host list 100 entries it becomes case-sensitive due to an optimized matching path. An attacker can bypass...

CVE-2026-27588

CVE-2026-27588 affects Caddy prior to 2.11.1, where the HTTP host matcher becomes case-sensitive when configured with large host lists (>100 entries). This changes the documented case-insensitivity of the host matcher and can allow an attacker to bypass host-based routing and attached access c...

CVE-2026-27588 Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, but when configured with a large host list 100 entries it becomes case-sensitive due to an optimized matching path. An attacker can bypass...

CVE-2026-27588 Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, but when configured with a large host list 100 entries it becomes case-sensitive due to an optimized matching path. An attacker can bypass...

CVE-2026-27588

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, but when configured with a large host list 100 entries it becomes case-sensitive due to an optimized matching path. An attacker can bypass...

CVE-2026-27588 Caddy: MatchHost becomes case-sensitive for large host lists (>100), enabling host-based route/auth bypass

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP host request matcher is documented as case-insensitive, but when configured with a large host list 100 entries it becomes case-sensitive due to an optimized matching path. An attacker can bypass...

CVE-2020-36858

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in t...

EUVD-2020-30817

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in t...

CVE-2020-36858

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in t...

CVE-2020-36858

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in t...

CVE-2020-36858 Nagios Log Server < 2.1.6 XSS via Create User, Edit User, & Manage Host Lists Pages

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in t...

CVE-2020-36858

Nagios Log Server is affected by a cross-site scripting (XSS) vulnerability in versions prior to 2.1.6, exposed via the web interface on Create User, Edit User, and Manage Host Lists pages. The root cause is insufficient validation/escaping of user-supplied input, allowing an attacker to inject a...

CVE-2020-36858 Nagios Log Server < 2.1.6 XSS via Create User, Edit User, & Manage Host Lists Pages

Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS vulnerabilities via the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in t...

Nagios Log Server 安全漏洞

Nagios Log Server is a suite of centralized log management, monitoring, and analysis software from Nagios, Inc. A security vulnerability exists in Nagios Log Server versions prior to 2.1.6, which stems from insufficient validation or escaping of user input on the Create User, Edit User, and Manag...

PT-2025-44464

Name of the Vulnerable Software and Affected Versions Nagios Log Server versions prior to 2.1.6 Description Nagios Log Server versions prior to 2.1.6 contain cross-site scripting XSS issues through the web interface on the Create User, Edit User, and Manage Host Lists pages. Insufficient validati...