CVE-2026-26012 vaultwarden has Full Cipher Enumeration Ignoring Organization Collection Permissions
Regular organization members can retrieve all ciphers within an organization, bypassing collection-level access controls to read sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26012?
CVE-2026-26012 is a medium-severity missing authorization vulnerability in dani-garcia vaultwarden, published on 11 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to 1.35.3, a regular organization member can retrieve all ciphers within an organization, regardless of collection permissions. The endpoint /ciphers/organization-details is accessible to any organization member and internally uses Cipher::find_by_org to retrieve all ciphers. These ciphers are returned with CipherSyncType::Organization without enforcing collection-level access control. This vulnerability is fixed in 1.35.3.
Weakness: CWE-863
Which versions are affected by CVE-2026-26012?
It affects 1 product.
Products include Dani-Garcia Vaultwarden.
How do I fix CVE-2026-26012?
No fix has been published for CVE-2026-26012 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-26012 being exploited?
There is no known exploitation of CVE-2026-26012 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in dani-garcia vaultwarden
- CVE-2024-55225 Vaultwarden vulnerable to user impersonation
- CVE-2024-55224 Vaultwarden HTML injection vulnerability
- CVE-2024-39924 Privilege escalation in n/a
- CVE-2026-43912 Vaultwarden: Cross-Org Group Binding Enables Unauthorized Read And Write Access Into Another Organization
- CVE-2026-27802 Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager
Sources
Also known as GHSA-h265-g7rm-h337.