CVE-2026-47164

HighCVSS 7.7/10Last modified Oct 24, 2026

Description

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO login flow checked the IdP email_verified claim only for new-user creation and not when SSO_SIGNUPS_MATCH_EMAIL=true linked an IdP identity to an existing local account, allowing an attacker-controlled IdP identity asserting a victim email address to bind to and authenticate as that account. This issue is fixed in version 1.36.0.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Weakness enumeration

CWE-284

Affected software

No affected versions have been published.

Timeline

Published: Jul 15, 2026
Last modified: Oct 24, 2026
NVD status: Deferred

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