CVE-2026-27803
8.3 · HIGHOverview
CVE-2026-27803 is a high-severity vulnerability affecting dani-garcia vaultwarden. It was published on March 4, 2026 and has a CVSS 3.1 base score of 8.3 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
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, < 1.35.4 | Affected |
Frequently Asked Questions
What is CVE-2026-27803?
CVE-2026-27803 is a high-severity vulnerability affecting dani-garcia vaultwarden. It was published on March 4, 2026 and has a CVSS 3.1 base score of 8.3 (HIGH).
How severe is CVE-2026-27803?
This vulnerability has a CVSS 3.1 base score of 8.3, 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-2026-27803?
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-2026-27803?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-27803 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
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