CVE-2026-52830

The CVE describes a path-traversal in fast-mcp-telegram prior to 0.19.1 where HTTP Bearer tokens are joined into a session-file path. The verifier rejects only the exact reserved token, not path separators or normalized paths, enabling a remote client to authenticate as the default legacy session...

CVE-2026-52830

fast-mcp-telegram is a Telegram MCP Server. Prior to 0.19.1, fast-mcp-telegram validates HTTP Bearer tokens by joining the raw token string into a session-file path. The verifier rejects the exact reserved token telegram, but it does not reject path separators or normalize the path before checkin...

EUVD-2026-41438

fast-mcp-telegram is a Telegram MCP Server. Prior to 0.19.1, fast-mcp-telegram validates HTTP Bearer tokens by joining the raw token string into a session-file path. The verifier rejects the exact reserved token telegram, but it does not reject path separators or normalize the path before checkin...

Improper Authentication

Overview fast-mcp-telegram is a Multi-tenant Telegram gateway for AI agents — HTTP+stdio transport, 8 agent-optimized tools, MTProto User API Affected versions of this package are vulnerable to Improper Authentication via the SessionFileTokenVerifier.verifytoken process. An attacker can gain...

GHSA-F9FF-5X35-7GFW Grackle: Fail-open authorization in the MCP tool layer lets scoped agents perform cross-task and cross-session mutations (IDOR)

Summary Authorization for scoped agent MCP callers is enforced inline, per tool, and is applied inconsistently — several mutating tools silently omit the ancestry/workspace check that their siblings perform. Because the MCP server authenticates all outbound gRPC with the full server API key and t...

Security Bulletin: MCP Server Configuration Validator Bypass via File Upload API

Summary A validation bypass vulnerability existed in the File Manager API that could allow an authenticated attacker to upload malicious MCP server configurations. The file upload endpoint accepted mcpservers.json files without invoking the MCPServerConfig validator, while the structured MCP API...

EUVD-2026-36324

OpenClaw: MCP loopback could skip owner-only tool policy for non-owner callers...

GHSA-84HP-MQVJ-3P8H mcp-memory-service: Missing Authentication on Document API Endpoints Allows Unauthenticated Memory Read/Write/Delete

Missing Authentication on Document API Endpoints Allows Unauthenticated Memory Read/Write/Delete Summary All HTTP routes under /api/documents/ in mcp-memory-service are served without any authentication dependency, even when the server is configured with an API key MCPAPIKEY or OAuth. An...

CVE-2026-50143

creationtimestamp| type| source ---|---|--- 2026-07-02 00:35:02+00:00| published-proof-of-concept| https://github.com/apify/apify-mcp-server/security/advisories/GHSA-6gr2-qh89-hxwm...

PT-2026-55457

9Router is an AI router & token saver. In 0.4.45 and earlier, 9Router's src/dashboardGuard.js local-only access gate used Host and Origin headers in isLocalRequest to protect /api/mcp/, /api/tunnel/, and /api/cli-tools/, allowing header spoofing in reverse proxy or tunnel deployments to reach MCP...

9router has an Incomplete Fix: Local-Only Access Gate Bypass in 9router via Host Header SpoofING

The fix for CVE-2026-46339 unauthenticated RCE via unprotected MCP plugin routes introduced a local-only access gate in src/dashboardGuard.js that restricts spawn-capable routes /api/mcp/, /api/tunnel/, /api/cli-tools/ to loopback requests. The gate determines "local" by inspecting the Host and...

PT-2026-55313

Name of the Vulnerable Software and Affected Versions fast-mcp-telegram versions prior to 0.19.1 Description fast-mcp-telegram validates HTTP Bearer tokens by joining the raw token string into a session-file path. While the verifier rejects the exact reserved token telegram, it fails to reject pa...

GHSA-6GR2-QH89-HXWM Apify Model Context Protocol (MCP) server: Actor MCP path authority injection leaks Apify token

Actor MCP path authority injection leaks Apify token Summary @apify/actors-mcp-server version 0.10.7 builds Actor standby URLs by directly concatenating a trusted base URL with an attacker-controlled webServerMcpPath value taken from an Actor definition returned by the Apify API. An attacker who...

GHSA-GVPP-V77H-5W8G Cortex has Untrusted Project Bootstrap Code Execution via `CLAUDE_PROJECT_DIR`

Untrusted Project Bootstrap Code Execution via CLAUDEPROJECTDIR Summary The Cortex MCP server neuro-cortex-memory treats the CLAUDEPROJECTDIR environment variable — automatically set by Claude Code to the currently open project directory — as a trusted Cortex developer checkout. When the...

Server-side Request Forgery (SSRF)

Overview auth-fetch-mcp is a MCP server that lets AI read Notion, Google Docs, Jira & any login-protected page via a real browser Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the isPrivateV6 function, which fails to properly detect IPv4-mapped IPv6...

CVE-2026-10750

The Royal MCP WordPress plugin before 1.4.26 does not perform capability checks on the majority of its MCP tools after token authentication, allowing authenticated users with a low-privileged role such as Subscriber to read private content, enumerate all users and their roles, and create, modify,...

CVE-2026-10750

CVE-2026-10750 concerns the Royal MCP WordPress plugin prior to 1.4.26. The issue arises because the plugin does not perform capability checks on most MCP tools after token authentication, enabling authenticated, low-privilege users (e.g., Subscriber) to read private content, enumerate users and ...

EUVD-2026-40414

Presenton before 0.8.8-beta bundles an MCP server that, on server/Docker deployments configured with session authentication AUTHUSERNAME/AUTHPASSWORD, is reachable unauthenticated at /mcp because the nginx front-end does not apply the authrequest gate to that path and the MCP server auto-mints a...

PT-2026-55214

Name of the Vulnerable Software and Affected Versions neuro-cortex-memory versions 3.17.0 and later Description Local arbitrary code execution is possible because the server treats the CLAUDE PROJECT DIR environment variable as a trusted source root. When the open visualization tool is invoked, t...

CVE-2026-58446

Presenton before 0.8.8-beta bundles an MCP server that, on server/Docker deployments configured with session authentication AUTHUSERNAME/AUTHPASSWORD, is reachable unauthenticated at /mcp because the nginx front-end does not apply the authrequest gate to that path and the MCP server auto-mints a...