Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Summary The default .htaccess shipped with Grav and the reference webserver-configs/htaccess.txt contains security rules that block direct HTTP access to sensitive file types .yaml, .yml, .php, .json, .twig, etc. under user/ and system/vendor/ directories. However, these rules lack the NC No Case...

GHSA-VWG3-W8W3-PC79 Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Summary The default .htaccess shipped with Grav and the reference webserver-configs/htaccess.txt contains security rules that block direct HTTP access to sensitive file types .yaml, .yml, .php, .json, .twig, etc. under user/ and system/vendor/ directories. However, these rules lack the NC No Case...

Improper Handling of Case Sensitivity

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in the .htaccess process on case-insensitive filesystems due to the lack of case-insensitive matching fo...

CVE-2026-62673 Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Grav is a file-based Web platform. Prior to 2.0.4, the Grav .htaccess and webserver-configs/htaccess.txt security rules omit the Apache NC flag and therefore compare sensitive directory and file-extension patterns case-sensitively. On a case-insensitive filesystem, an unauthenticated requester ca...

CVE-2026-62673 Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems

Grav is a file-based Web platform. Prior to 2.0.4, the Grav .htaccess and webserver-configs/htaccess.txt security rules omit the Apache NC flag and therefore compare sensitive directory and file-extension patterns case-sensitively. On a case-insensitive filesystem, an unauthenticated requester ca...

CVE-2026-72836

FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory ownership during self-registration. When Signup and CreateUserDir are enabled and FileBrowser's root is on a case-insensitive filesystem confirmed on Windows/NTFS, two self-registered usernam...

CVE-2026-72836 FileBrowser before 2.63.19 Case Sensitivity Authentication Bypass

FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory ownership during self-registration. When Signup and CreateUserDir are enabled and FileBrowser's root is on a case-insensitive filesystem confirmed on Windows/NTFS, two self-registered usernam...

CVE-2026-72836

FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory ownership during self-registration. When Signup and CreateUserDir are enabled and FileBrowser's root is on a case-insensitive filesystem confirmed on Windows/NTFS, two self-registered usernam...

CVE-2026-72836

Affected: FileBrowser before 2.63.19. Root on a case-insensitive filesystem (e.g., Windows/NTFS) allows two self-registered usernames that differ only by case to resolve to the same home directory, because the scope-ownership check uses an exact case-sensitive comparison. This enables an attacker...

EUVD-2026-58650

FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory ownership during self-registration. When Signup and CreateUserDir are enabled and FileBrowser's root is on a case-insensitive filesystem confirmed on Windows/NTFS, two self-registered usernam...

CVE-2026-72836: Improper Handling of Case Sensitivity

FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory ownership during self-registration. When Signup and CreateUserDir are enabled and FileBrowser's root is on a case-insensitive filesystem confirmed on Windows/NTFS, two self-registered usernam...

PT-2026-72005

Name of the Vulnerable Software and Affected Versions FileBrowser versions prior to 2.63.19 Description An issue exists when the software is hosted on a case-insensitive filesystem, such as Windows/NTFS, and both Signup and CreateUserDir are enabled. The system fails to account for...

CVE-2026-70429

Jenkins versions 2.575 and earlier (including LTS 2.568.1 and earlier ) are vulnerable to a privilege escalation flaw due to inconsistent handling of case-insensitivity in user and group names. This allows an attacker to create new users or groups with names that case-insensitively match existing...

CVE-2026-70429

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in...

CVE-2026-70429

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in...

PT-2026-68264

Name of the Vulnerable Software and Affected Versions Jenkins versions prior to 2.576 Jenkins LTS versions prior to 2.568.2 Description Inconsistent handling of case-insensitivity in user and group names allows attackers with the ability to create new users or groups to impersonate other users or...

SUSE CVE-2026-42273

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs host matching in a case-sensitive manner, while HTTP hostnames are case-insensitive. This discrepancy can result in heimdall failing to match a rule for a request host...

Poweradmin: OIDC `sub` collation bypass in Poweradmin leading to account takeover

Preface Poweradmin maps OIDC identities into local users through oidcuserlinks.oidcsubject plus providerid. In the MySQL schema, the OIDC link table explicitly uses utf8mb4unicodeci, which is case-insensitive and accent-insensitive. OIDC sub is a stable external subject identifier and should be...

Arbitrary File Upload

Overview Flask-Reuploaded is a Flexible and efficient upload handling for Flask Affected versions of this package are vulnerable to Arbitrary File Upload through the save process when a user-supplied name parameter is used to override the filename. An attacker can upload files with dangerous...

Improper Handling of Case Sensitivity

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity in the .htaccess process. An attacker can gain unauthorized access to sensitive configuration files by...