MCP Atlassian: ENABLED_TOOLS / Toolset authorization bypass

Summary ENABLEDTOOLS and TOOLSETS filters are enforced at tools/list time only. tools/call dispatches from the full unfiltered tool registry 73 tools. Any user with access to the server endpoint that knows a tool name can invoke it directly. Tool names are not secret since mcp-atlassian is open...

CVE-2026-77243

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, ENABLEDTOOLS and TOOLSETS are applied when tools are listed but are not rechecked when a tools/call request is dispatched. A client that knows a hidden tool name can directly invoke...

CVE-2026-77243 MCP Atlassian: ENABLED_TOOLS / Toolset authorization bypass

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, ENABLEDTOOLS and TOOLSETS are applied when tools are listed but are not rechecked when a tools/call request is dispatched. A client that knows a hidden tool name can directly invoke...

CVE-2026-77243 MCP Atlassian: ENABLED_TOOLS / Toolset authorization bypass

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, ENABLEDTOOLS and TOOLSETS are applied when tools are listed but are not rechecked when a tools/call request is dispatched. A client that knows a hidden tool name can directly invoke...

CVE-2026-77243

The MCP Atlassian Model Context Protocol server for Confluence and Jira is vulnerable to an authorization bypass in versions prior to 0.22.0 . The root cause is that while ENABLED_TOOLS and TOOLSETS are applied during tool listing, they are not rechecked when a tools/call request is dispatched. T...

EUVD-2026-84626

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, ENABLEDTOOLS and TOOLSETS are applied when tools are listed but are not rechecked when a tools/call request is dispatched. A client that knows a hidden tool name can directly invoke...

CVE-2026-77243 MCP Atlassian: ENABLED_TOOLS / Toolset authorization bypass

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, ENABLEDTOOLS and TOOLSETS are applied when tools are listed but are not rechecked when a tools/call request is dispatched. A client that knows a hidden tool name can directly invoke...

CVE-2026-77519

MaxKB (an open-source enterprise AI assistant) versions 2.10.2-lts and earlier contain an authentication inconsistency in the /chat/api/mcp endpoint. The MCP authentication path validates ApplicationApiKey using only the secret and active status, omitting the is_permanent and expire_time checks e...

CVE-2026-77519 MaxKB: Expired application API keys remain usable on `/chat/api/mcp`

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, the /chat/api/mcp authentication path looks up an ApplicationApiKey using only its secret and active status, without enforcing the ispermanent and expiretime checks used by the standard chat API. A previously valid,...

CVE-2026-57139 PraisonAI MCPServer exposes unauthenticated HTTP tools/call

PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest without authentication or authorization. Any network client that can reach the port can...

CVE-2026-57139 PraisonAI MCPServer exposes unauthenticated HTTP tools/call

PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest without authentication or authorization. Any network client that can reach the port can...

CVE-2026-57139 PraisonAI MCPServer exposes unauthenticated HTTP tools/call

PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest without authentication or authorization. Any network client that can reach the port can...

CVE-2026-55529: Missing Authentication for Critical Function

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the MCP HTTP Stream validateorigin method accepts requestorigin.startswithallowed, so the attacker-controlled localhost.evil.example HTTP origin matches the localhost allowlist. Without an API key, a malicious webpage can submit...

CVE-2026-67431: Improper Access Control

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to 0.23.0, MCP::Server::Transports::StreamableHTTPTransport in the mcp gem does not bind a session ID to a session owner, allowing an attacker with a stolen session ID to send tools/call requests that...

CVE-2026-61427: Improper Input Validation

PraisonAI before 4.6.78 exposes the MCP HTTP-stream transport without authentication by default: the CLI --api-key option defaults to None, and the server only enforces Authorization/Bearer checks when an API key is configured. When an operator runs 'praisonai mcp serve --transport http-stream'...

mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call

SummaryThe HTTP MCP JSON-RPC endpoint at /mcp requires only OAuth read scope for all requests, then dispatches tools/call directly to handlers that include mutating tools. A read-only OAuth client can call storememory and deletememory through MCP even though the corresponding REST endpoints requi...

PYSEC-2026-2622 mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call

Summary The HTTP MCP JSON-RPC endpoint at /mcp requires only OAuth read scope for all requests, then dispatches tools/call directly to handlers that include mutating tools. A read-only OAuth client can call storememory and deletememory through MCP even though the corresponding REST endpoints...

PYSEC-2026-472 PraisonAI MCP `tools/call` path-traversal => RCE via Python `.pth` injection

Summary PraisonAI's MCP Model Context Protocol server praisonai mcp serve registers four file-handling tools by default — praisonai.rules.create, praisonai.rules.show, praisonai.rules.delete, and praisonai.workflow.show. Each accepts a path or filename string from MCP tools/call arguments and joi...

CVE-2026-49291 mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call

mcp-memory-service is a semantic memory layer for AI applications. Prior to version 10.65.3, the HTTP MCP JSON-RPC endpoint at /mcp requires only OAuth read scope for all requests, then dispatches tools/call directly to handlers that include mutating tools. A read-only OAuth client can call...

npm PraisonAI MCPServer exposes unauthenticated HTTP tools/call

Summary The published npm package praisonai exports a TypeScript MCPServer that can expose tools, resources, and prompts over an HTTP JSON-RPC transport with: ts await server.start port: 3000 ; The HTTP transport has no authentication or authorization path. MCPServerConfig does not expose an...