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CVE-2026-27802highCWE-269CWE-863

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

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.3epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L