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-2026-27587

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP path request matcher is intended to be case-insensitive, but when the match pattern contains percent-escape sequences %xx it compares against the request's escaped path without lowercasing. An...

CVE-2026-27587 Caddy: MatchPath %xx (escaped-path) branch skips case normalization, enabling path-based route/auth bypass

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, Caddy's HTTP path request matcher is intended to be case-insensitive, but when the match pattern contains percent-escape sequences %xx it compares against the request's escaped path without lowercasing. An...

tomcat: Apache Tomcat: Security constraint bypass for CGI scripts

A flaw was found in the CGI servlet component of Apache Tomcat. This vulnerability allows a security constraint bypass via improper handling of case sensitivity in the pathInfo component of a URI mapped to the CGI servlet...

tomcat: Apache Tomcat: Security constraint bypass for CGI scripts

A flaw was found in the CGI servlet component of Apache Tomcat. This vulnerability allows a security constraint bypass via improper handling of case sensitivity in the pathInfo component of a URI mapped to the CGI servlet...

Authentication Bypass

Apache Shiro is vulnerable to Authentication Bypass. The vulnerability is due to inconsistent case handling between Shiro’s filter chain matching and the underlying case-insensitive filesystem, where filter rules may be defined only for lower-case paths while the filesystem resolves file names...

CVE-2026-25992

SiYuan is a personal knowledge management system. Prior to 3.5.5, the /api/file/getFile endpoint uses case-sensitive string equality checks to block access to sensitive files. On case-insensitive file systems such as Windows, attackers can bypass restrictions using mixed-case paths and read...

CVE-2026-25992

SiYuan is a personal knowledge management system. Prior to 3.5.5, the /api/file/getFile endpoint uses case-sensitive string equality checks to block access to sensitive files. On case-insensitive file systems such as Windows, attackers can bypass restrictions using mixed-case paths and read...

Improper Handling of Case Sensitivity

Overview github.com/filebrowser/filebrowser/v2/http is a web file browser. Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity due to improper handling of case sensitivity in the userPutHandler function. An attacker can gain unauthorized access to user accoun...

GHSA-HXW8-4H9J-HQ2R File Browser has an Authentication Bypass in User Password Update

Security Advisory: Authentication Bypass in User Password Update Summary A case-sensitivity flaw in the password validation logic allows any authenticated user to change their password or an admin to change any user's password without providing the current password. By using Title Case field name...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity due to improper handling of case sensitivity in the userPutHandler function. An attacker can gain unauthorized access to user accounts and modify passwords without verification by submitting API...

File Browser has an Authentication Bypass in User Password Update

Security Advisory: Authentication Bypass in User Password Update Summary A case-sensitivity flaw in the password validation logic allows any authenticated user to change their password or an admin to change any user's password without providing the current password. By using Title Case field name...

CVE-2026-25889

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to 2.57.1, a case-sensitivity flaw in the password validation logic allows any authenticated user to change their password or an admin to change...

GO-2026-4386 SiYuan File Read API Case Sensitivity Bypass can Lead to Path Traversal in github.com/siyuan-note/siyuan/kernel

SiYuan File Read API Case Sensitivity Bypass can Lead to Path Traversal in github.com/siyuan-note/siyuan/kernel...

Security Bulletin: IBM OpenPages for Cloud Pak for Data is Vulnerable to Multiple Spring Framework Vulnerabilities (CVE-2024-38820,CVE-2025-22233)

Summary Spring MVC controller vulnerable to a DoS attack and DataBinder Case Sensitive Match Exception. These vulnerabilities were remediated. Vulnerability Details CVEID:CVE-2024-38820 DESCRIPTION: The fix for CVE-2022-22968 made disallowedFields patterns in DataBinder case insensitive. However,...

Improper Handling of Case Sensitivity

Overview Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity via the /api/file/getFile endpoint. An attacker can access sensitive configuration files by submitting mixed-case paths to bypass case-sensitive checks on case-insensitive file systems. Remediation...

SiYuan File Read API Case Sensitivity Bypass can Lead to Path Traversal

File Read Interface Case Bypass Vulnerability Vulnerability Name File Read Interface Case Bypass Vulnerability Overview The /api/file/getFile endpoint uses case-sensitive string equality checks to block access to sensitive files. On case-insensitive file systems such as Windows, attackers can...

GHSA-F72R-2H5J-7639 SiYuan File Read API Case Sensitivity Bypass can Lead to Path Traversal

File Read Interface Case Bypass Vulnerability Vulnerability Name File Read Interface Case Bypass Vulnerability Overview The /api/file/getFile endpoint uses case-sensitive string equality checks to block access to sensitive files. On case-insensitive file systems such as Windows, attackers can...

SUSE CVE-2026-22864

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.5.6, a prior patch aimed to block spawning Windows batch/shell files by returning an error when a spawned path's extension matched .bat or .cmd. That check performs a case-sensitive comparison against lowercase literals and...