CVE-2026-63118

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 validate the HTTP Host or Origin request headers, which allows a malicious browser page to use DNS rebinding to reach a...

EUVD-2026-50489

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 validate the HTTP Host or Origin request headers, which allows a malicious browser page to use DNS rebinding to reach a...

CVE-2026-63118

The MCP Ruby SDK (mcp gem) contains a DNS rebind vulnerability in MCP::Server::Transports::StreamableHTTPTransport where HTTP Host/Origin are not validated. This allows a malicious page to bind a victim’s locally running MCP server to a loopback/ LAN address and post JSON‑RPC requests to exposed ...

CVE-2026-63118 MCP Ruby SDK: Streamable HTTP transport lacks DNS-rebinding (Host/Origin) protection

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 validate the HTTP Host or Origin request headers, which allows a malicious browser page to use DNS rebinding to reach a...

MindsDB -DNS Rebinding SSRF Protection Bypass

Detects DNS rebinding vulnerability that allows bypass of SSRF protection. The vulnerability exists in the URL validation mechanism where DNS resolution is performed without considering DNS rebinding attacks. id: CVE-2024-24759 info: name: MindsDB -DNS Rebinding SSRF Protection Bypass author: Lee...

PT-2026-65888

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 validate the HTTP Host or Origin request headers, which allows a malicious browser page to use DNS rebinding to reach a...

CVE-2026-55391

datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. Prior to 0.63.0, datamodel-code-generator validates a URL host once in src/datamodelcodegenerator/http.py through...

datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

Summary datamodel-code-generator's anti-SSRF guard validates the resolved IP of a fetch target once and then lets httpx perform its own independent DNS resolution to connect, so the validated address is never pinned. A hostname that resolves to a public IP at validation time and a private IP at...

EUVD-2026-50076

datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. Prior to 0.63.0, datamodel-code-generator validates a URL host once in src/datamodelcodegenerator/http.py through...

CVE-2026-55391 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. Prior to 0.63.0, datamodel-code-generator validates a URL host once in src/datamodelcodegenerator/http.py through...

CVE-2026-55391 datamodel-code-generator vulnerable to SSRF protection bypass via DNS rebinding

datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. Prior to 0.63.0, datamodel-code-generator validates a URL host once in src/datamodelcodegenerator/http.py through...

Server-side Request Forgery (SSRF)

Overview @budibase/backend-core is a Budibase backend core libraries used in server and worker Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the REST datasource integration due to improper handling of DNS rebinding protections. An attacker can access...

Server-side Request Forgery (SSRF)

Overview @budibase/server is a Budibase Web Server Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the REST datasource integration due to improper handling of DNS rebinding protections. An attacker can access internal-only services, read sensitive data, or...

Server-side Request Forgery (SSRF)

Overview @budibase/server is a Budibase Web Server Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the OpenAPI import and REST query execution processes. An attacker can access internal network resources by exploiting DNS rebinding to bypass outbound fetch...

CVE-2026-66005

CVE-2026-66005 affects Jan up to version 0.8.4. The local API server has a CORS misconfiguration that replaces user-configured trusted hosts with a wildcard, reflecting arbitrary origins with credentials. This enables network-adjacent attackers to bypass trusted host restrictions and reach the un...

PT-2026-64318

Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploiting the server's replacement of user-configured trusted hosts with a wildcard that reflects...

PYSEC-2026-3519 PraisonAI: Jobs webhook SSRF protection bypass via DNS rebinding

Jobs webhook SSRF protection bypass via DNS rebinding Summary PraisonAI's Async Jobs API validates webhookurl when a job request is parsed and again when the internal Job object is constructed. That validation blocks direct loopback/private targets, but it is not bound to the later network reques...

PYSEC-2026-3534 PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools

PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools Summary praisonaiagents.mcp.ToolsMCPServer.runsse builds a Starlette MCP HTTP+SSE server around mcp.server.sse.SseServerTransport. The server exposes /sse and /messages/, but it does not valida...

CVE-2026-46555

The CVE applies to WhatsApp MCP Server, where the whatsapp-bridge HTTP API on 127.0.0.1:8080 is unauthenticated and lacks Host header validation. The /api/send endpoint accepts an absolute media_path, enabling a local caller (including sibling MCP servers, IDE extensions, or other processes in th...

CVE-2026-46555 WhatsApp MCP: Unauthenticated bridge API allows message sending and arbitrary file exfiltration

WhatsApp MCP Server is a Model Context Protocol MCP server for WhatsApp, enabling Claude to read and send WhatsApp messages. Prior to version 0.2.1, the whatsapp-bridge HTTP API listens on 127.0.0.1:8080 without authentication and without Host header validation, and the /api/send endpoint accepts...