{
	"document":{
		"aggregate_severity":{
			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"MEDIUM"
		},
		"category":"csaf_vex",
		"csaf_version":"2.0",
		"distribution":{
			"tlp":{
				"label":"WHITE",
				"url":"https:/www.first.org/tlp/"
			}
		},
		"lang":"en",
		"notes":[
			{
				"text":"The MCP Python SDK, called `mcp` on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.9.4, a validation error in the MCP SDK can cause an unhandled exception when processing malformed requests, resulting in service unavailability (500 errors) until manually restarted. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures. Version 1.9.4 contains a patch for the issue.",
				"category":"general",
				"title":"Synopsis"
			}
		],
		"publisher":null,
		"references":[
			{
				"summary":"nvd cve",
				"category":"external",
				"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53366"
			},
			{
				"summary":"CVE-2025-53366 vex file",
				"category":"self",
				"url":"https://repo.openeuler.org/security/data/csaf/cve/2025/csaf-openeuler-cve-2025-53366.json"
			},
			{
				"summary":"openEuler-SA-2026-1151",
				"category":"self",
				"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1151"
			},
			{
				"summary":"CVE-2025-53366",
				"category":"self",
				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-53366&packageName=python-mcp"
			}
		],
		"title":"openEuler cve CVE-2025-53366",
		"tracking":{
			"initial_release_date":"2026-01-22T11:03:25+08:00",
			"revision_history":[
				{
					"date":"2026-01-22T11:03:25+08:00",
					"summary":"Initial",
					"number":"1.0.0"
				}
			],
			"generator":{
				"date":"2026-01-22T11:03:25+08:00",
				"engine":{
					"name":"openEuler CSAF Tool V1.0"
				}
			},
			"current_release_date":"2026-01-22T11:03:25+08:00",
			"id":"CVE-2025-53366",
			"version":"1.0.0",
			"status":"interim"
		}
	},
	"product_tree":{
		"branches":[
			{
				"name":"openEuler",
				"category":"vendor",
				"branches":[
					{
						"name":"openEuler",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3"
									},
									"product_id":"openEuler-24.03-LTS-SP3",
									"name":"openEuler-24.03-LTS-SP3"
								},
								"name":"openEuler-24.03-LTS-SP3",
								"category":"product_version"
							}
						],
						"category":"product_name"
					},
					{
						"name":"noarch",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3"
									},
									"product_id":"python3-mcp-1.12.3-1.oe2403sp3.noarch.rpm",
									"name":"python3-mcp-1.12.3-1.oe2403sp3.noarch.rpm"
								},
								"name":"python3-mcp-1.12.3-1.oe2403sp3.noarch.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					},
					{
						"name":"src",
						"branches":[
							{
								"product":{
									"product_identification_helper":{
										"cpe":"cpe:/a:openEuler:openEuler:24.03-LTS-SP3"
									},
									"product_id":"python-mcp-1.12.3-1.oe2403sp3.src.rpm",
									"name":"python-mcp-1.12.3-1.oe2403sp3.src.rpm"
								},
								"name":"python-mcp-1.12.3-1.oe2403sp3.src.rpm",
								"category":"product_version"
							}
						],
						"category":"architecture"
					}
				]
			}
		],
		"relationships":[
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP3",
				"product_reference":"python3-mcp-1.12.3-1.oe2403sp3.noarch.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP3:python3-mcp-1.12.3-1.oe2403sp3.noarch",
					"name":"python3-mcp-1.12.3-1.oe2403sp3.noarch as a component of openEuler-24.03-LTS-SP3"
				},
				"category":"default_component_of"
			},
			{
				"relates_to_product_reference":"openEuler-24.03-LTS-SP3",
				"product_reference":"python-mcp-1.12.3-1.oe2403sp3.src.rpm",
				"full_product_name":{
					"product_id":"openEuler-24.03-LTS-SP3:python-mcp-1.12.3-1.oe2403sp3.src",
					"name":"python-mcp-1.12.3-1.oe2403sp3.src as a component of openEuler-24.03-LTS-SP3"
				},
				"category":"default_component_of"
			}
		]
	},
	"vulnerabilities":[
		{
			"cve":"CVE-2025-53366",
			"notes":[
				{
					"text":"The MCP Python SDK, called `mcp` on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.9.4, a validation error in the MCP SDK can cause an unhandled exception when processing malformed requests, resulting in service unavailability (500 errors) until manually restarted. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures. Version 1.9.4 contains a patch for the issue.",
					"category":"description",
					"title":"Vulnerability Description"
				}
			],
			"product_status":{
				"fixed":[
					"openEuler-24.03-LTS-SP3:python3-mcp-1.12.3-1.oe2403sp3.noarch",
					"openEuler-24.03-LTS-SP3:python-mcp-1.12.3-1.oe2403sp3.src"
				]
			},
			"remediations":[
				{
					"product_ids":[
						"openEuler-24.03-LTS-SP3:python3-mcp-1.12.3-1.oe2403sp3.noarch",
						"openEuler-24.03-LTS-SP3:python-mcp-1.12.3-1.oe2403sp3.src"
					],
					"details":"python-mcp security update",
					"category":"vendor_fix",
					"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1151"
				}
			],
			"scores":[
				{
					"cvss_v3":{
						"baseSeverity":"MEDIUM",
						"baseScore":5.5,
						"vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L",
						"version":"3.1"
					},
					"products":[
						"openEuler-24.03-LTS-SP3:python3-mcp-1.12.3-1.oe2403sp3.noarch",
						"openEuler-24.03-LTS-SP3:python-mcp-1.12.3-1.oe2403sp3.src"
					]
				}
			],
			"threats":[
				{
					"details":"Medium",
					"category":"impact"
				}
			],
			"title":"CVE-2025-53366"
		}
	]
}