{"schema":"threatline.record/2","record":{"id":"CVE-2026-82043","aliases":[],"summary":"UTMStack < 11.2.16 Account Enumeration via Password Reset Endpoint","details":"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.","categories":["Unclassified"],"product":"UTMStack","vendor":"UTMStack","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-82043","source_modified_at":"2026-10-06T16:41:53.278Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"UTMStack","vendor":"UTMStack","versions":[{"status":"affected","version":"0","versionType":"semver","lessThan":"11.2.16"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-82043","source_modified_at":"2026-10-06T16:41:53.278Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"UTMStack","ecosystem":null},"version":"11.2.16","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00247,"percentile":0.15092,"score_date":"2026-10-23"},"published_at":"2026-10-02T20:17:20.012Z","modified_at":"2026-10-06T16:41:53.278Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-82043","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-06T16:41:53.278Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-82043","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/UTMStack/UTMStack/releases/tag/v11.2.16","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/utmstack/UTMStack/commit/4e7a727c3b8d8e2ad020d3b4f982a6d085dbecdd","tags":["patch"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/utmstack-account-enumeration-via-password-reset-endpoint","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-06T16:41:44.157203Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-06T16:41:53.278Z","content_hash":"8212e942445ccc3c29a8ee006c283b16ce3b9bf0beafb33aa59a60f2826aefc4"}}