Vulnerability Report

CVE-2026-27803

Title: Privilege Management Bypass in Vaultwarden

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-27803.

CWE Category CWE-269

Published Date Mar 04, 2026

Modified Date Mar 06, 2026

Exploit Status Not Found

Score 8.3 CVSS v3.1

Exploit Probability (EPSS)

0.37%

Vulnerability Summary

CVE-2026-27803: 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.

Impacted Vendors

dani-garcia 1

Reference Links

https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-h4hq-rgvh-wh27

CVSS v3.1

Source Entity [email protected]

Severity HIGH

8.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-27803 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

March 06, 2026 MODIFIED

Vulnerability data updated via NVD.

March 06, 2026 MODIFIED

Vulnerability data updated via NVD.

March 05, 2026 MODIFIED

Vulnerability data updated via NVD.

March 04, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected Stack

No specific products linked.