{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"padloc/padloc","product":"padloc","source":"CNA: VulnCheck","vendor":"padloc","versions":[{"lessThan":"4.3.1","status":"affected","version":"4.0.0","versionType":"semver"},{"status":"unaffected","version":"4.3.1","versionType":"semver"}]}],"cveId":"CVE-2026-126571","cwes":["CWE-307"],"description":"Padloc 4.0.0 before 4.3.1 contains an authentication bypass vulnerability in the legacy retrieveMFAToken handler that never counts wrong email verification codes toward the attempt limit. Unauthenticated attackers knowing a victim's email can brute force the 6-digit code to obtain verification tokens usable in signup, login and account recovery flows.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":6.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.8,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"}],"modifiedAt":1794364566963,"publishedAt":1794364566963,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/padloc/padloc/security/advisories/GHSA-3mq5-m2qg-fqhq"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/padloc/padloc/commit/26f292515fe623826070454872f9cee08b756544"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/padloc/padloc/blob/v4.3.0/packages/core/src/v3-compat.ts#L191-L210"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/padloc-4.0.0-before-4.3.1-email-mfa-code-brute-force-via-retrievemfatoken"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/padloc/padloc/commit/26f292515fe623826070454872f9cee08b756544"}],"revision":"c90242c753016889f005e97c31f558af4b4fec54cc3227bce44260e7cbc1f31c","sources":[{"modifiedAt":1794364566963,"name":"CNA: VulnCheck","retrievedAt":1794366526529,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126571"}],"ssvc":null,"status":"published","title":"Padloc 4.0.0 before 4.3.1 Email MFA Code Brute Force via retrieveMFAToken","updatedAt":1794366526529}