CVE-2025-24364: vaultwarden allows RCE in the admin panel

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-01-27 · updated 2026-06-17
Weakness: CWE-74

Description

vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Attacker with authenticated access to the vaultwarden admin panel can execute arbitrary code in the system. The attacker could then change some settings to use sendmail as mail agent but adjust the settings in such a way that it would use a shell command. It then also needed to craft a special favicon image which would have the commands embedded to run during for example sending a test email. This vulnerability is fixed in 1.33.0.

Affected products

dani-garcia vaultwarden: before 1.33.0 — fixed in 1.33.0

How to fix

Upgrade to a fixed version: dani-garcia vaultwarden 1.33.0. Check the vendor advisory for mitigations.

References

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