Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934e
- https://github.com/dani-garcia/vaultwarden/pull/7163
- https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0
- https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-6x5c-84vm-5j
FAQ
What is CVE-2026-47164?
CVE-2026-47164 is a vulnerability with a CVSS score of 7.7 (HIGH). 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_MAT...
How severe is CVE-2026-47164?
CVE-2026-47164 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-47164?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.