trust-boundary-ctf

🐘 Trust Boundary: MCPセッション分離CTF コンソールには「セッションアクティブ 」と表示されます。 すべてのツール呼び出しが成功します。 管理者のOAuthトークンがすべてのレスポンスに含まれています。 Trust Boundary は、ローカルで実行されているMCPサーバーにおける実際のセッション分離の失敗を題材にした、ブラウザベースのCTFラボです。脆弱性はシミュレーションされたものではなく、実行中のプロセス内で発生します。3つのフラグがあります。DevToolsのみ使用。 攻撃...

EUVD-2026-78210

DocsGPT through 0.20.0 posts OAuth connector session tokens to a wildcard target origin in the callback-status endpoint without validating sender origin. Attackers can obtain session tokens and provider account emails by acting as window.opener during OAuth authorization, then use tokens to...

CVE-2026-55837 dbt-mcp: Unauthenticated OAuth Context Endpoint Leaks dbt Platform Tokens

dbt-mcp is a Model Context Protocol server for interacting with dbt. Prior to 1.20.0, the local OAuth helper in src/dbtmcp/oauth/fastapiapp.py exposes GET /dbtplatformcontext without authentication or Host validation after a user completes the dbt Platform OAuth flow. The endpoint returns the ful...

Astra Linux – Vulnerability in curl

When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP, POP3, or SMTP scheme, curl may incorrectly pass the bearer token to the new target host...

Twitch Browser Extension Leaks OAuth Tokens From Nearly 31,000 Users

A malicious cross-store Twitch browser extension has leaked OAuth tokens associated with nearly 31,000 users to proxy servers operated by a Russian commercial bot service. The extension, named "Twitch Enhanced Viewer | JeetBot," lists HISHIMIRO/jeetbot.cc as its developer and has the following...

PT-2026-91759

DocsGPT through 0.20.0 posts OAuth connector session tokens to a wildcard target origin in the callback-status endpoint without validating sender origin. Attackers can obtain session tokens and provider account emails by acting as window.opener during OAuth authorization, then use tokens to...

CVE-2026-71424 Onyx: Cross-user OAuth-token leak via /api/mcp/servers* for per-user MCP servers

Onyx is an open-source AI platform. Prior to 3.1.10, 3.2.14, and 4.0.0, Onyx's GET /api/mcp/servers and GET /api/mcp/servers/persona/personaid endpoints expose another user's OAuth Authorization header because OnyxTokenStorage.settokens and OnyxTokenStorage.setclientinfo in...

CVE-2026-71424

CVE-2026-71424 is a critical cross-user OAuth token leak in Onyx , an open-source AI platform. The GET /api/mcp/servers and GET /api/mcp/servers/persona/{persona_id} endpoints expose another user's OAuth Authorization header. The root cause is that OnyxTokenStorage.set_tokens and OnyxTokenStorage...

CVE-2026-71424 Onyx: Cross-user OAuth-token leak via /api/mcp/servers* for per-user MCP servers

Onyx is an open-source AI platform. Prior to 3.1.10, 3.2.14, and 4.0.0, Onyx's GET /api/mcp/servers and GET /api/mcp/servers/persona/personaid endpoints expose another user's OAuth Authorization header because OnyxTokenStorage.settokens and OnyxTokenStorage.setclientinfo in...

RHEL 10 : curl (RHSA-2026:55450)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55450 advisory. The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including...

PT-2026-70795

TypeBot is a chatbot builder tool. Versions prior to 3.17.0 allow a low-privilege guest member of a workspace to obtain a live Google Sheets OAuth access token for that workspace by calling the Google Sheets helper getAccessToken. The vulnerable path checks only whether the caller has read access...

CVE-2026-54020

Open WebUI (self-hosted AI platform) contains a DNS rebinding SSRF vulnerability (CVE-2026-54020) affecting pre-0.11.0 behavior. An attacker who controls authoritative DNS for a submitted hostname could have validation return a public address while the connection later resolves to an internal add...

CVE-2026-16481: Server-Side Request Forgery (SSRF)

A Server-Side Request Forgery SSRF and credential exfiltration vulnerability exists in the cloud-healthcare-fhir-fetch-page tool of googleapis/mcp-toolbox. The tool takes an unvalidated pageURL parameter from the client and issues an HTTP GET request to it using an authenticated client. The...

CVE-2025-14524

When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP, POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new target host...

CVE-2022-32227

A cleartext transmission of sensitive information exists in Rocket.Chat v5, v4.8.2 and v4.7.5 relating to Oauth tokens by having the permission "view-full-other-user-info", this could cause an oauth token leak in the product...

CVE-2022-32227

CVE-2022-32227 affects Rocket.Chat prior to v5, v4.8.2, and v4.7.5, where a user with the permission view-full-other-user-info could access another user’s OAuth tokens via the REST API (users.info). The root cause is cleartext transmission/leak of sensitive OAuth token data. Impact described incl...

CVE-2022-32227

A cleartext transmission of sensitive information exists in Rocket.Chat v5, v4.8.2 and v4.7.5 relating to Oauth tokens by having the permission "view-full-other-user-info", this could cause an oauth token leak in the product...