Vaultwarden: Unconfirmed Owner Can Purge Entire Organization Vault_CVE-2026-43913

8.1 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Description

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.5, Vaultwarden allows an unconfirmed organization owner to purge the entire organization vault. The organization invite flow uses a two-step process: accepting an invite transitions membership from Invited to Accepted, and a separate confirmation by an existing owner upgrades it to Confirmed. The POST /api/ciphers/purge endpoint uses plain Headers and only checks that the membership type is Owner without verifying that the membership status is Confirmed. An authenticated user who has been invited as an organization owner and has accepted the invite and has not yet been confirmed can call this endpoint to hard-delete all ciphers and attachments in the organization,
causing immediate organization-wide data loss. This vulnerability is fixed in 1.35.5.

Basic Information

ID CVE-2026-43913

Source GitHub_M

Published May 11, 2026 at 22:01

Affected Product

Vendor dani-garcia

Product vaultwarden

Version < 1.35.5

Affected Versions dani-garcia vaultwarden < 1.35.5

CWE Classification

CWE-863

References

github.com /dani-garcia/vaultwarden/security/advisories/GHSA-937x-3j8m-7w7p

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    "published": "2026-05-11T22:01:35.817Z",
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