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-2026-77243: Missing Authorization

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...

PT-2026-96924

Name of the Vulnerable Software and Affected Versions MCP Atlassian versions prior to 0.22.0 Description An authorization bypass exists where the ENABLED TOOLS and TOOLSETS filters are only enforced during the tools/list request and are not re-verified when a tools/call request is dispatched. Thi...

EUVD-2026-84196

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-2026-77519

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,...

SUSE CVE-2026-46519

mcp-server-kubernetes is a Model Context Protocol server for Kubernetes cluster management. Prior to version 3.6.0, mcp-server-kubernetes exposes three environment variables ALLOWONLYREADONLYTOOLS, ALLOWONLYNONDESTRUCTIVETOOLS, ALLOWEDTOOLS documented as access controls for restricting which...

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-2026-47394

PraisonAI is a multi-agent teams system. Prior to version 4.6.40, the fix for GHSA-9mqq-jqxf-grvw / CVE-2026-44336 is incomplete. The original advisory description named four vulnerable handlers in "mcpserver/adapters/clitools.py". Commit "68cc9427" "fixsecurity: harden MCP rules path handling…"...

Duplicate Advisory: PraisonAI: MCP HTTP-stream transport is unauthenticated by default, exposing tool enumeration and an unvalidated tool-call surface

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-hc5v-gxvj-58wh. This link is maintained to preserve external references. Original Description PraisonAI before 4.6.78 exposes the MCP HTTP-stream transport without authentication by default: the CLI --api-key...

CVE-2026-61427

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'...

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'...

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...

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-2026-472 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...