{"id":"CVE-2026-59563","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-59563","generatedAt":"2026-10-28T01:19:37.424Z","title":"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…","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.","published":"2026-09-28T13:17:22.000Z","lastModified":"2026-09-28T15:17:17.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve@zscaler.com","cvss":{"version":"3.1","score":4.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L"},"cwe":["CWE-305"],"affected":[],"epss":{"score":0.00131,"percentile":0.02666,"date":"2026-10-26","history":[{"date":"2026-09-29","score":0.00131,"percentile":0.02227}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-28T13:17:22.000Z","detail":{"score":"4.6","severity":"MEDIUM","publishedAt":"2026-09-28T13:17:22.160Z"},"summary":"New CVE, medium severity (CVSS 4.6)."}],"references":[{"url":"https://github.com/zscaler/zscaler-mcp-server/pull/41","source":"cve@zscaler.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-59563","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}