GHSA-436Q-JWFR-RM2H jupyterlab-git excluded_paths Case-Sensitivity Bypass Allows Reading Excluded Directories

Summary jupyterlab-git 0.53.0 latest, 2026-04-30 uses fnmatch.fnmatchcase in GitHandler.prepare jupyterlabgit/handlers.py:91 to enforce the admin-configured excludedpaths security control. Because fnmatchcase is unconditionally case-sensitive, an authenticated user on a case-insensitive filesyste...

CVE-2026-49286

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so PHAR://, Phar://, etc...

CVE-2026-49286 PhpWeasyPrint vulnerable to PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass)

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so PHAR://, Phar://, etc...

CVE-2026-49286

CVE-2026-49286 - PhpWeasyPrint : The library (prior to 2.6.0) guards the output filename against the phar:// stream wrapper with a case-sensitive blacklist. Because PHP stream wrappers are case-insensitive, inputs like PHAR://, Phar:// bypass the check and reach fileExists() in prepareOutput(), a...

CVE-2026-49286 PhpWeasyPrint vulnerable to PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass)

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so PHAR://, Phar://, etc...

PT-2026-51066

Name of the Vulnerable Software and Affected Versions jupyterlab-git versions prior to 0.54.0 Description An authenticated user on a case-insensitive filesystem such as macOS APFS or Windows NTFS can bypass the excluded paths security control. The issue occurs because the GitHandler.prepare...

GHSA-J99Q-93C9-H869 MCPVault: PathFilter restricted-directory deny-list bypass via case and trailing dot/space equivalence

On case-insensitive filesystems macOS, Windows, PathFilter compiled its deny-list patterns case-sensitively and matched the path verbatim, so names like .Git/config, .GIT/config, or .oBsIdIaN/secrets.md slipped past the .git/.obsidian/nodemodules restriction while the OS opened the real file. On...

MCPVault: PathFilter restricted-directory deny-list bypass via case and trailing dot/space equivalence

On case-insensitive filesystems macOS, Windows, PathFilter compiled its deny-list patterns case-sensitively and matched the path verbatim, so names like .Git/config, .GIT/config, or .oBsIdIaN/secrets.md slipped past the .git/.obsidian/nodemodules restriction while the OS opened the real file. On...

GHSA-9CR8-Q42Q-G8M7 Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts

Summary There is a critical vulnerability in Traefik's HTTP/3 QUIC TLS configuration selection that allows unauthenticated clients to bypass router-specific mTLS enforcement. When HTTP/3 is enabled on an entrypoint, the TLS handshake selects the applicable TLS configuration through an exact,...

PT-2026-50163

Name of the Vulnerable Software and Affected Versions Traefik versions 3.6.17 through 3.7.1 Description An issue in the HTTP/3 QUIC TLS configuration selection allows unauthenticated clients to bypass router-specific mutual TLS mTLS enforcement. When HTTP/3 is enabled, the TLS handshake uses an...

EulerOS 2.0 SP13 : cups (EulerOS-SA-2026-2282)

According to the versions of the cups packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer...

GHSA-8CJM-8MP7-R2XF Django: UpdateCacheMiddleware may disclose cached responses due to case-sensitive Cache-Control handling

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6. django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

PYSEC-2026-201

An issue was discovered in Django 5.2 before 5.2.15 and 6.0 before 6.0.6.django.middleware.cache.UpdateCacheMiddleware in Django does not match Cache-Control response directives case-insensitively, which allows remote attackers to read responses that were incorrectly cached because their...

CLSA-2026-1779215980 cups: Fix of CVE-2026-27447

CVE-2026-27447: fix authorization bypass via case-insensitive username comparison in scheduler...

CLSA-2026-1779215547 cups: Fix of CVE-2026-27447

CVE-2026-27447: fix authorization bypass via case-insensitive username comparison in scheduler...

GHSA-4GPH-2HHR-5MWG Envoy AI Proxy - MCP Message Smuggling Vulnerability

Envoy AI Gateway was found to be affected by a protocol parser differential vulnerability due to improper implementation of the JSON-RPC 2.0 specification. Such differential causes a MCP message alteration, potentially causing a bypass of security controls in a multi-layered architecture. Accordi...

Envoy AI Proxy - MCP Message Smuggling Vulnerability

Envoy AI Gateway was found to be affected by a protocol parser differential vulnerability due to improper implementation of the JSON-RPC 2.0 specification. Such differential causes a MCP message alteration, potentially causing a bypass of security controls in a multi-layered architecture. Accordi...

node-tar: tar: node-tar: Arbitrary file overwrite via Unicode path collision race condition

A flaw was found in node-tar, a library for Node.js. This race condition vulnerability occurs due to incomplete handling of Unicode path collisions within the path-reservations system on case-insensitive filesystems, such as macOS APFS. A remote attacker can exploit this by providing a specially...

node-tar: tar: node-tar: Arbitrary file overwrite via Unicode path collision race condition

A flaw was found in node-tar, a library for Node.js. This race condition vulnerability occurs due to incomplete handling of Unicode path collisions within the path-reservations system on case-insensitive filesystems, such as macOS APFS. A remote attacker can exploit this by providing a specially...

Security Bulletin:DevOps Test Embedded for Eclipse IDE is vulnerable to XXE injection & RCE due to use of JGit and EGit ( CVE-2023-4759 and CVE-2025-4949)

Summary Due to the use of JGit and EGit, DevOps Test Embedded for Eclipse contains vulnerabilities that could lead to unauthorized file access via XML External Entity XXE injection, and arbitrary file overwrites on case-insensitive filesystems that can lead to Remote Code Execution RCE. This only...