{"id":"CVE-2026-50055","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-50055","generatedAt":"2026-10-28T06:35:14.970Z","title":"A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address.","description":"A policy-enforcement flaw in Zimbra Collaboration Suite allows an authenticated user to bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address.","published":"2026-10-08T17:17:17.000Z","lastModified":"2026-10-08T20:49:23.000Z","status":"Awaiting Analysis","sourceIdentifier":"cve@rapid7.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-863"],"affected":[],"epss":{"score":0.00363,"percentile":0.29959,"date":"2026-10-27","history":[{"date":"2026-10-09","score":0.00274,"percentile":0.1823}]},"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 (0.36%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-08T17:17:17.000Z","detail":{"score":"6.5","severity":"MEDIUM","publishedAt":"2026-10-08T17:17:17.307Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","source":"cve@rapid7.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-50055","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."}