Bitwarden Server before 2026.10.1 on Entity Framework backends contains an authorization bypass vulnerability that allows organization members to add ciphers to collections they cannot edit. Attackers can call POST /api/ciphers/create, where a nulled UserId is treated as administrative, to inject vault items synced to read-only or inaccessible collections' members.

Project Subscriptions

Vendors Products
Bitwarden Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 30 Oct 2026 11:45:00 +0000

Type Values Removed Values Added
Description Bitwarden Server before 2026.10.1 on Entity Framework backends contains an authorization bypass vulnerability that allows organization members to add ciphers to collections they cannot edit. Attackers can call POST /api/ciphers/create, where a nulled UserId is treated as administrative, to inject vault items synced to read-only or inaccessible collections' members.
Title Bitwarden Server before 2026.10.1 Authorization Bypass via POST /api/ciphers/create
First Time appeared Bitwarden
Bitwarden server
Weaknesses CWE-863
CPEs cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*
Vendors & Products Bitwarden
Bitwarden server
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-30T11:30:47.330Z

Reserved: 2026-10-30T02:41:10.108Z

Link: CVE-2026-119414

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-30T12:16:37.673

Modified: 2026-10-30T12:16:37.673

Link: CVE-2026-119414

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T13:00:14Z

Weaknesses