CVE-2026-47159
Vaultwarden: Authentication Flow Information Disclosure in SSO Discovery Allows Organization Enumeration and Pre-Validation Token Exposure
Description
Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.36.0, Vaultwarden's SSO discovery and pre-validation flow returned organization-related SSO metadata including organizationIdentifier values for arbitrary email addresses and allowed a valid pre-validation JWT to be obtained with only the discovered identifier, enabling SSO-enabled organization enumeration and authentication workflow abuse. This issue is fixed in version 1.36.0.
INFO
Published Date :
July 15, 2026, 3:02 p.m.
Last Modified :
July 15, 2026, 3:02 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Solution
- Update Vaultwarden to version 1.36.0 or later.
- Verify SSO configuration and access controls.
- Review authentication logs for suspicious activity.
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