Use of Multiple Resources with Duplicate Identifier

Overview jupyterhub is a JupyterHub: A multi-user server for Jupyter notebooks Affected versions of this package are vulnerable to Use of Multiple Resources with Duplicate Identifier via unescaped hyphen handling in OAuth client ID generation, which allows an authenticated user to collide with...

CVE-2026-108752 JupyterHub through 6.0.1 OAuth Client ID Collision via Unescaped Hyphen

JupyterHub through 6.0.1 contains an identifier collision vulnerability that allows authenticated users to overwrite another user's named-server OAuth client by registering a hyphenated username. Attackers holding a name like alice-prod can overwrite the client for alice's server prod, breaking...

CVE-2026-108752 JupyterHub through 6.0.1 OAuth Client ID Collision via Unescaped Hyphen

JupyterHub through 6.0.1 contains an identifier collision vulnerability that allows authenticated users to overwrite another user's named-server OAuth client by registering a hyphenated username. Attackers holding a name like alice-prod can overwrite the client for alice's server prod, breaking...

PT-2026-105847

Summary When OAuth tokens are saved, MCP Atlassian always writes a plaintext fallback copy under /.mcp-atlassian/oauth-.json. The fallback file is created with the process default umask rather than restrictive permissions. In this environment the file was created as mode 0664, exposing access and...

PT-2026-96925

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions prior to 0.22.0 Description OAuthConfig writes a plaintext fallback file containing access token and refresh token within the user's .mcp-atlassian directory. This file is created using process-default permissions rather...

CVE-2026-75932: Missing Authorization

Jet Admin allows an attacker to create a malicious app and connect it to a target user's custom domain, edit the authentication configuration, and reroute traffic to the attacker-controlled app. Once connected to the target domain, the attacker's workspace is populated with the victim's OAuth...

CVE-2021-22236

Due to improper handling of OAuth client IDs, new subscriptions generated OAuth tokens on an incorrect OAuth client application. This vulnerability is present in GitLab CE/EE since version 14.1...