Auth bypass in Dani-Garcia Vaultwarden
CVE-2026-26012
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (28.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Dani-Garcia Vaultwarden — versions < 1.35.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/dani-garcia/vaultwarden/security/advisories/GHSA-h265-g7rm-h337 (Vendor Advisory)
- github.com/dani-garcia/vaultwarden/releases/tag/1.35.3 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-26012?
- CVE-2026-26012 is a medium-severity vulnerability in Dani-Garcia Vaultwarden, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-02-11.
- How severe is CVE-2026-26012?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2026-26012 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.