CVE-2026-43913
8.1 · HIGHOverview
CVE-2026-43913 is a high-severity vulnerability affecting dani-garcia vaultwarden. It was published on May 11, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from dani-garcia. Update vaultwarden to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| dani-garcia | vaultwarden | >= 0, < 1.35.5 | Affected |
Frequently Asked Questions
What is CVE-2026-43913?
CVE-2026-43913 is a high-severity vulnerability affecting dani-garcia vaultwarden. It was published on May 11, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2026-43913?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-43913?
Check the references section for vendor advisories and patches from dani-garcia. Update vaultwarden to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-43913?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-43913 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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