oauth-client-exploit

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CVE-2025-12028

1 Start a simple HTTP server to host the proof-of-concept page mkdir -p /tmp/attacker && cd /tmp/attacker php -S 127.0.0.1:8000 2 Create a file /tmp/attacker/poc.html with the following contents document.getElementById'x'.submit; 3 Trigger the PoC in a logged-in browser session While logged into:...

PT-2026-115890

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...

Linux Distros Unpatched Vulnerability : CVE-2026-108752

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - JupyterHub through 6.0.1 contains an identifier collision vulnerability that allows authenticated users to overwrite another user's named-server OAuth client by...

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 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...

DEBIAN-CVE-2026-108752

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 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...

UBUNTU-CVE-2026-108752

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...

CVE-2026-108752

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...

CVE-2026-108752

JupyterHub versions through 6.0.1 are vulnerable to an identifier collision vulnerability caused by the use of unescaped hyphens in usernames. This flaw allows authenticated users to overwrite another user's named-server OAuth client by registering a hyphenated username (e.g., a user with the nam...

CVE-2026-108752

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: Use of Multiple Resources with Duplicate Identifier

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-2026-110154

Name of the Vulnerable Software and Affected Versions JupyterHub versions prior to 6.0.2 Description An identifier collision occurs when authenticated users register a hyphenated username. This allows an attacker to overwrite another user's named-server OAuth client. For example, a user with a na...

EUVD-2026-93491

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Starting in version 1.12.0 and prior to versions 1.31.0 and 2.2.0, the SDK's OAuth client support let the MCP server a client connected to decide which authorization server received the client's OAut...

CVE-2026-104850 MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Starting in version 1.12.0 and prior to versions 1.31.0 and 2.2.0, the SDK's OAuth client support let the MCP server a client connected to decide which authorization server received the client's OAut...

CVE-2026-104850

The MCP TypeScript SDK (versions 1.12.0 through 1.30.1) and @modelcontextprotocol/client (versions 2.0.0 through 2.1.0) are vulnerable to a flaw where the SDK's OAuth client allows a connected MCP server to dictate which authorization server receives client credentials. Because credentials were n...

CVE-2026-104850 MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Starting in version 1.12.0 and prior to versions 1.31.0 and 2.2.0, the SDK's OAuth client support let the MCP server a client connected to decide which authorization server received the client's OAut...