{"id":"CVE-2026-82043","published":"2026-10-02T21:16:56.790","lastModified":"2026-10-06T17:17:27.543","description":"UTMStack before 11.2.16 contains an account enumeration vulnerability that allows unauthenticated attackers to determine registered email addresses by observing differing HTTP responses from the POST /api/account/reset-password/init endpoint. Attackers can submit arbitrary email addresses and distinguish registered accounts, which return 200 OK, from unregistered accounts, which trigger a 500 Internal Server Error with backend error details, enabling targeted phishing or credential attacks.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-204"],"vendors":[],"products":[],"references":[{"url":"https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16","tags":[]},{"url":"https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd","tags":[]},{"url":"https://www.vulncheck.com/advisories/utmstack-account-enumeration-via-password-reset-endpoint","tags":[]}],"exploitRefs":[{"url":"https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16","tags":[]},{"url":"https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd","tags":[]}],"hasPoc":true,"ai":null}