CVE-2026-27802 describes a privilege escalation vulnerability in Vaultwarden, an unofficial Bitwarden-compatible server, affecting versions prior to 1.35.4. This flaw allows a Manager role to gain unauthorized access to collections through a bulk permission update. The vulnerability carries a high CVSS score of 8.3, indicating a significant risk. It can be exploited remotely with low attack complexity and requires low privileges, potentially leading to high confidentiality and integrity impacts, along with a low availability impact. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules for Metasploit, Nuclei, or ExploitDB. Community discussion is minimal, with only one mention identified.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.35.4CPE matchmatch criteria | cpe:2.3:a:dani-garcia:vaultwarden:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.