CVE-2026-47158
Description
A flaw was found in Vaultwarden, a Bitwarden-compatible server. An unauthenticated attacker could exploit a vulnerability in the Single Sign-On (SSO) authorization flow. This flaw, caused by improper binding of the OAuth state parameter to the browser session and inadequate cleanup of SSO authentication records, allows an attacker to hijack a user's login. The primary consequence is full account takeover, potentially leading to access to encrypted vault material and sensitive user information.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Frequently Asked Questions
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