Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager
Priority LOW 38CWE-269Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-269 and CWE-863.
Summary
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, there is a privilege escalation vulnerability via bulk permission update to unauthorized collections by Manager. This issue has been patched in version 1.35.4.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00336 27th percentileScored 2026-11-07
Fix Fixed vaultwarden (dani-garcia): 1.35.4vaultwarden (crates.io): 1.35.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| dani-garcia | vaultwarden | before 1.35.4 | 1.35.4 | Patch available | CNA |
| — | vaultwarden (crates.io) | before 1.35.4 | 1.35.4 | Patch available | GHSA-r32r-j5jq-3w4m |
- vaultwarden Vendordani-garcia Affected before 1.35.4 Fixed in 1.35.4 Patch available CNA
- vaultwarden (crates.io) Vendor— Affected before 1.35.4 Fixed in 1.35.4 Patch available GHSA-r32r-j5jq-3w4m
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dani-garcia:vaultwarden:*:*:*:*:*:*:*:* | before 1.35.4 | Vulnerable | dani-garcia |
- cpe:2.3:a:dani-garcia:vaultwarden:*:*:*:*:*:*:*:* Versions before 1.35.4 Vulnerable ·dani-garcia
Remediation
- Fix · CNA vaultwarden (dani-garcia) Fixed in 1.35.4
- Fix · GHSA-r32r-j5jq-3w4m vaultwarden (crates.io) Fixed in 1.35.4 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-27802
- 2026-10-03 Alias added: GHSA-r32r-j5jq-3w4m
References
More dani-garcia Vaultwarden vulnerabilities
- TI-2026-31977 Vaultwarden: Brute-force protection bypass vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-31975 Vaultwarden: Cross-Org Group Binding Enables Unauthorized Read And Write Access Into Another Organization CVSS 3.1HIGH 8.7
- TI-2026-31974 Vaultwarden: Refresh tokens not invalidated on security stamp rotation CVSS 3.1HIGH 8.1
- TI-2025-18108 vaultwarden allows escalation of privilege via variable confusion in OrgHeaders trait CVSS 3.1HIGH 8.1
- TI-2025-18107 vaultwarden allows RCE in the admin panel CVSS 3.1HIGH 7.2
- TI-2026-22155 Vaultwarden: 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement CVSS 4.0MEDIUM 6.0
Sources
- CVE-2026-27802 · CVE Program
- CVE-2026-27802 · NVD
- FIRST EPSS
- GHSA-r32r-j5jq-3w4m · GitHub Advisory Database · CC BY 4.0
- CVE-2026-27802 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences