Vaultwarden: Collection Management Operations Allowed Without `manage` Verification for Manager Role
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-285.
Summary
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, when a Manager has manage=false for a given collection, they can still perform several management operations as long as they have access to the collection. 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-h4hq-rgvh-wh27 |
- 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-h4hq-rgvh-wh27
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-h4hq-rgvh-wh27 vaultwarden (crates.io) Fixed in 1.35.4 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-27803
- 2026-10-03 Alias added: GHSA-h4hq-rgvh-wh27
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-2026-27803 · CVE Program
- CVE-2026-27803 · NVD
- FIRST EPSS
- GHSA-h4hq-rgvh-wh27 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-27803 · 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