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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/dani-garcia/vaultwarden/commit/d297e274a35dccd0f5d935e9d5934…
security-advisories@github.com
https://github.com/dani-garcia/vaultwarden/pull/7163
security-advisories@github.com
https://github.com/dani-garcia/vaultwarden/releases/tag/1.36.0
security-advisories@github.com
https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-hxqh-ff5p-w…
security-advisories@github.com