CVE-2026-27802

Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager

State: Published
Severity: 8.3 High
Published: Mar 4, 2026
Updated: Mar 5, 2026
Reserved: Feb 24, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.3 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L	GitHub_M

Weaknesses

CWE-269 Improper Privilege Management
CWE-863 Incorrect Authorization

Affected Products

Product	Versions
vaultwardendani-garcia	< 1.35.4Affected

References

https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-r32r-j5jq-3w4m

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