{"id":"CVE-2026-59563","revision":"9537c8fc595e4ec7ba7007c400997519","records":[{"revision":"9537c8fc595e4ec7ba7007c400997519","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-59563","aliases":[],"title":"HMAC Confirmation Token Unbinding in zscaler-mcp-server","description":"Zscaler MCP Server versions 0.7.0 and 0.7.1 has an issue where HMAC confirmation tokens were not bound to the target resource identifier, allowing an MCP client or agent to replay a token generated for one resource to affect another resource of the same type. This issue is fixed in version 0.7.2.","state":0,"publishedAt":"2026-09-28T12:54:52.446+00:00","modifiedAt":"2026-09-28T13:31:27.587+00:00","affected":[{"ecosystem":"Vendor product","name":"zscaler-mcp-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Zscaler\",\n                    \"product\": \"zscaler-mcp-server\",\n                    \"repo\": \"https://github.com/zscaler/zscaler-mcp-server\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.7.0\",\n                            \"lessThan\": \"0.7.2\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L","score":4.6,"severity":"MEDIUM"}],"references":["https://github.com/zscaler/zscaler-mcp-server/pull/41"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-59563","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-59563","identifiers":["CVE-2026-59563"]},"retained":false,"historicalAffected":[]}],"coverage":[]}