{"id":"CVE-2026-82043","title":"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 endp…","summary":"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 endp…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-204"],"vendor":"UTMStack","product":"UTMStack","affected":["UTMStack < 11.2.16"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T21:16:56.790","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82043","references":[{"url":"https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16","label":"disclosure@vulncheck.com"},{"url":"https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/utmstack-account-enumeration-via-password-reset-endpoint","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-02T22:33:09.847Z","slug":"CVE-2026-82043","body":"## Overview\n\nUTMStack 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}