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CVE-2026-33420

Vaultwarden missing authorization check allows Manager-role users to enumerate all collections

Published: May 5, 2026Updated: Jul 24, 2026 Sources: CVE List NVDCWE-862
5.3MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 93.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-862

Affected Products

dani-garcia
oss-projectaka vaultwarden
vaultwardenOn-prem
Security Products / identity-access-mgmt

Exploitability

Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/dani-garcia/vaultwarden/security/advisories/GHSA-jjxg-p3v6-52ww
github.com
https://github.com/dani-garcia/vaultwarden/releases/tag/1.35.5
github.com

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