Medium severity4.8NVD Advisory· Published Nov 11, 2026
CVE-2026-126571
CVE-2026-126571
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.
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Affected products
1Patches
Vulnerability mechanics
References
4- github.com/padloc/padloc/blob/v4.3.0/packages/core/src/v3-compat.tsnvd
- github.com/padloc/padloc/commit/26f292515fe623826070454872f9cee08b756544nvd
- github.com/padloc/padloc/security/advisories/GHSA-3mq5-m2qg-fqhqnvd
- www.vulncheck.com/advisories/padloc-4.0.0-before-4.3.1-email-mfa-code-brute-force-via-retrievemfatokennvd
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