{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126571", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-11T02:18:34.574Z", "datePublished": "2026-11-11T02:36:06.963Z", "dateUpdated": "2026-11-11T02:36:06.963Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-11T02:36:06.963Z"}, "datePublic": "2026-11-10T10:36:46.000Z", "title": "Padloc 4.0.0 before 4.3.1 Email MFA Code Brute Force via retrieveMFAToken", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Restriction of Excessive Authentication Attempts", "cweId": "CWE-307", "type": "CWE"}]}], "affected": [{"vendor": "padloc", "product": "padloc", "defaultStatus": "unaffected", "versions": [{"version": "4.0.0", "lessThan": "4.3.1", "status": "affected", "versionType": "semver"}, {"version": "4.3.1", "status": "unaffected", "versionType": "semver"}], "packageURL": "pkg:github/padloc/padloc", "repo": "https://github.com/padloc/padloc"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/padloc/padloc/security/advisories/GHSA-3mq5-m2qg-fqhq", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-3mq5-m2qg-fqhq)"}, {"url": "https://github.com/padloc/padloc/commit/26f292515fe623826070454872f9cee08b756544", "tags": ["patch"]}, {"url": "https://github.com/padloc/padloc/blob/v4.3.0/packages/core/src/v3-compat.ts#L191-L210", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: Padloc 4.0.0 before 4.3.1 Email MFA Code Brute Force via retrieveMFAToken", "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"}], "credits": [{"lang": "en", "value": "Zachariah Mithani (AploSec)", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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