{"id":"CVE-2026-59563","revision":null,"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. 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