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-2026-19770

A vulnerability was identified in feedmob fm-mcp-servers 0.0.3. Affected by this vulnerability is the function downloadReport of the file src/smadex-reporting/src/index.ts of the component Download Endpoint. The manipulation of the argument downloadUrl leads to server-side request forgery. The...

CVE-2026-19770 feedmob fm-mcp-servers Download Endpoint index.ts downloadReport server-side request forgery

A vulnerability was identified in feedmob fm-mcp-servers 0.0.3. Affected by this vulnerability is the function downloadReport of the file src/smadex-reporting/src/index.ts of the component Download Endpoint. The manipulation of the argument downloadUrl leads to server-side request forgery. The...

CVE-2026-19770

The CVE-2026-19770 entry affects feedmob fm-mcp-servers 0.0.3, specifically the Download Endpoint’s Download Report function (src/smadex-reporting/src/index.ts). The vulnerability arises from manipulation of the downloadUrl argument, enabling server-side request forgery (SSRF). Exploitation is de...

EUVD-2026-58563

A vulnerability was identified in feedmob fm-mcp-servers 0.0.3. Affected by this vulnerability is the function downloadReport of the file src/smadex-reporting/src/index.ts of the component Download Endpoint. The manipulation of the argument downloadUrl leads to server-side request forgery. The...

CVE-2026-19770

A vulnerability was identified in feedmob fm-mcp-servers 0.0.3. Affected by this vulnerability is the function downloadReport of the file src/smadex-reporting/src/index.ts of the component Download Endpoint. The manipulation of the argument downloadUrl leads to server-side request forgery. The...

CVE-2026-19244

A vulnerability was detected in HKUDS nanobot up to 0.2.1. The affected element is the function connectmcpservers of the file nanobot/agent/tools/mcp.py of the component MCP enabledTools Scope Handler. Performing a manipulation results in improper access controls. The attack is possible to be...

CVE-2026-19244

The CVE affects HKUDS nanobot

CVE-2026-19244 HKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access control

A vulnerability was detected in HKUDS nanobot up to 0.2.1. The affected element is the function connectmcpservers of the file nanobot/agent/tools/mcp.py of the component MCP enabledTools Scope Handler. Performing a manipulation results in improper access controls. The attack is possible to be...

CVE-2026-17626

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow an authenticated attacker to read, modify, or expose sensitive host files via Docker-based MCP servers due to incomplete filtering of dangerous Docker volume-mount and device-mapping arguments...

PYSEC-2026-2474 FastMCP OAuth Proxy token reuse across MCP servers

While testing the OAuth Proxy implementation, it was noticed that the server does not properly respect the resource parameter submitted by the client in the authorization and token request. Instead of issuing the token explicitly for this MCP server, the token is issued for the baseurl passed to...

CVE-2026-54030

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.5, LibreChat's MCP OAuth implementation does not validate that the resource parameter from OAuth Protected Resource metadata RFC 9728 matches the configured MCP server URL, allowing a malicious MCP server to...

Duplicate Advisory: MCP Streamable HTTP redirects could forward configured custom headers to another origin

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rjxq-qqhf-8hwh. This link is maintained to preserve external references. Original Description OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwar...

PT-2026-49757

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.5.12 Description An information disclosure issue exists in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP...

PT-2026-48540

Due to the combination of checking out PR head branches attacker-controlled, reading .mcp.json from the working directory via default setting sources, and unconditionally enabling all project MCP servers via enableAllProjectMcpServers, it was possible for an attacker who opened a PR containing a...

CVE-2026-44653

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only VIEW access to an MCP server can retrieve the server's decrypted admin-managed secrets through GET /api/mcp/servers and GET /api/mcp/servers/:serverName. The returned...

Description-Code Inconsistency in Real-World MCP Servers: Measurement, Detection, and Security Implications

The Model Context Protocol MCP has emerged as a critical standard empowering Large Language Models LLMs to utilize external tools. In this ecosystem, LLMs rely on natural language descriptions provided by MCP servers to select and execute functions. This interaction implicitly assumes that tool...

CVE-2026-44653

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only VIEW access to an MCP server can retrieve the server's decrypted admin-managed secrets through GET /api/mcp/servers and GET /api/mcp/servers/:serverName. The returned...

Malicious code in @ornexus/neocortex (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector bb66a92e1a8c414ee0c8877998a9587b7c8a4be3b9b27b76d874329a87bec5dc On npm install -g @ornexus/neocortex, postinstall.js spawns install.sh or install.ps1 which, by default, runs an installcoderabbit step that fetches...