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I. Basic Information for CVE-2026-27802
Vulnerability Information

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Vulnerability Title
Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Vaultwarden 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vaultwarden是Daniel García个人开发者的一个用 Rust 编写的 Bitwarden 服务器 API 的替代实现。 Vaultwarden 1.35.4之前版本存在安全漏洞,该漏洞源于Manager可通过批量权限更新访问未授权集合,可能导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
dani-garciavaultwarden < 1.35.4 -
II. Public POCs for CVE-2026-27802
#POC DescriptionSource LinkShenlong Link
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kimi-k2.5 · 10538 chars
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III. Intelligence Information for CVE-2026-27802
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IV. Related Vulnerabilities
V. Comments for CVE-2026-27802

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