286 matches found
CVE-2026-109527 Model Context Protocol Python SDK HTTP and OAuth endpoints allow memory exhaustion through unbounded request bodies
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...
CVE-2026-109527
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...
CVE-2026-109527
The Model Context Protocol Python SDK is vulnerable to a memory exhaustion Denial of Service (DoS) in versions before 1.29.1 and from 2.0.0a1 through 2.0.1 . The vulnerability exists because the Streamable HTTP session manager , SSE message endpoint , and OAuth authorization-server routes buffer ...
EUVD-2026-101514
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...
CVE-2026-109527 Model Context Protocol Python SDK HTTP and OAuth endpoints allow memory exhaustion through unbounded request bodies
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...
CVE-2026-59951
The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...
CVE-2026-59951 MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion
The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...
CVE-2026-59951
The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...
CVE-2026-59951 MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion
The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...
CVE-2026-59951
The MCP Python SDK (PyPI: mcp) versions 1.8.0 through 1.30.0 and 2.2.0 are vulnerable to unbounded session accumulation within the StreamableHTTP transport . Specifically, stateful servers—including FastMCP , MCPServer , Server.streamable_http_app() , and StreamableHTTPSessionManager —fail to exp...
PT-2026-114020
Name of the Vulnerable Software and Affected Versions mcp versions prior to 1.29.1 mcp versions 2.0.0a1 through 2.0.1 Description The Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP request bodies without enforcing a maximum size. ...
CVE-2026-109527: Allocation of Resources Without Limits or Throttling
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...
CVE-2026-108597
Cohere Python SDK 5.11.0 through 7.2.0 contains a path traversal tar slip vulnerability in s3modelsdirtotarfile that allows arbitrary file write via unvalidated tarfile.extractall calls. Attackers who can write model archives to the victim's S3 prefix can include absolute paths or ../ members to...
CVE-2026-108597
Cohere Python SDK 5.11.0 through 7.2.0 contains a path traversal tar slip vulnerability in s3modelsdirtotarfile that allows arbitrary file write via unvalidated tarfile.extractall calls. Attackers who can write model archives to the victim's S3 prefix can include absolute paths or ../ members to...
CVE-2026-108597 Cohere Python SDK 5.11.0 through 7.2.0 Path Traversal via SageMaker Tar Extraction
Cohere Python SDK 5.11.0 through 7.2.0 contains a path traversal tar slip vulnerability in s3modelsdirtotarfile that allows arbitrary file write via unvalidated tarfile.extractall calls. Attackers who can write model archives to the victim's S3 prefix can include absolute paths or ../ members to...
CVE-2026-108597
The Cohere Python SDK versions 5.11.0 through 7.2.0 are vulnerable to a path traversal (tar slip) vulnerability within the _s3_models_dir_to_tarfile function. The root cause is the use of unvalidated tarfile.extractall() calls, which allows an attacker who can write model archives to the victim's...
EUVD-2026-96395
Cohere Python SDK 5.11.0 through 7.2.0 contains a path traversal tar slip vulnerability in s3modelsdirtotarfile that allows arbitrary file write via unvalidated tarfile.extractall calls. Attackers who can write model archives to the victim's S3 prefix can include absolute paths or ../ members to...
PT-2026-109738
Name of the Vulnerable Software and Affected Versions Cohere Python SDK versions 5.11.0 through 7.2.0 Description A path traversal tar slip issue exists in the s3 models dir to tarfile function. This occurs due to unvalidated tarfile.extractall calls, which allow arbitrary file writes. An attacke...
CVE-2026-108597: Improper Limitation of a Pathname to a Restricted Directory
Cohere Python SDK 5.11.0 through 7.2.0 contains a path traversal tar slip vulnerability in s3modelsdirtotarfile that allows arbitrary file write via unvalidated tarfile.extractall calls. Attackers who can write model archives to the victim's S3 prefix can include absolute paths or ../ members to...