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CVE-2026-33420— Vaultwarden missing authorization check allows Manager-role users to enumerate all collections

Quick assessment

Affected
dani-garcia vaultwarden
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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及之前版本存在安全漏洞，该漏洞源于get_org_collections_details端点缺少has_full_access授权检查，可能导致Manager角色用户检索组织内所有集合的名称、UUID和映射信息。

AI Predicted 5.3 Difficulty: Easy EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
dani-garcia vaultwarden < 1.35.5 affected
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I. Basic Information for CVE-2026-33420

Vulnerability Information
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Vulnerability Title
Vaultwarden missing authorization check allows Manager-role users to enumerate all collections
Source: CVE Program / CVE List V5
Vulnerability Description
Vaultwarden is a Bitwarden-compatible server written in Rust. In version 1.35.4 and earlier, the get_org_collections_details endpoint (GET /api/organizations/{org_id}/collections/details) is missing the has_full_access() authorization check that exists on the sibling get_org_collections endpoint. This allows any Manager-role user with accessAll=False and no collection assignments to retrieve the names, UUIDs, user-to-collection mappings, and group-to-collection mappings for all collections in the organization. This issue has been fixed in version 1.35.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
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及之前版本存在安全漏洞，该漏洞源于get_org_collections_details端点缺少has_full_access授权检查，可能导致Manager角色用户检索组织内所有集合的名称、UUID和映射信息。
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

Vendor Product Affected Versions CPE Subscribe
dani-garcia vaultwarden < 1.35.5 -

II. Public POCs for CVE-2026-33420

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III. Intelligence Information for CVE-2026-33420

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Vendor Advisories for CVE-2026-33420 (1)

Vendor Pages for CVE-2026-33420 (1)

IV. Related Vulnerabilities

Same product: vaultwarden
Same vendor: dani-garcia
Same weakness: CWE-862

V. Comments for CVE-2026-33420

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