CVE-2026-43912
Description
A flaw was found in Vaultwarden, a Bitwarden-compatible server. A remote attacker with administrative privileges in one organization and low-privileged membership in another could exploit improper enforcement of organization consistency in group management endpoints. This allows the attacker to bind their low-privileged membership to a group in the administrative organization. Consequently, the attacker gains unauthorized read and write access to vault data, including ciphers and items, in the low-privileged organization.
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)
Access Control
Technical Impact: Gain Privileges or Assume Identity
A user can access restricted functionality and/or sensitive information that may include administrative functionality and user accounts.
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