Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-43638 Details

Description

Bitwarden Server prior to v2026.4.1 contains a missing authorization vulnerability that allows any authenticated user to write ciphers into an arbitrary organization via `POST /ciphers/import-organization` by submitting an empty `collections` array, which causes the server-side permission check to be skipped.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/bitwarden/server/commit/ebbf6dd0fa752114c09d73abb48ce32a50476758 [email protected]Patch
https://github.com/bitwarden/server/pull/7394 [email protected]Issue TrackingPatch
https://github.com/bitwarden/server/releases/tag/v2026.4.1 [email protected]Release Notes
https://sanjokkarki.com.np/blog/bitwarden-import-org-bypass [email protected]ExploitThird Party Advisory
https://www.vulncheck.com/advisories/bitwarden-server-missing-authorization-via-organization-cipher-import [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-862Missing Authorization[email protected]

Affected Products

ProductVersions
bitwarden server
< 2026.4.1

CPE

  • cpe:2.3:a:bitwarden:server:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-43638
NVD Published Date:
May 11, 2026
NVD Last Modified:
Jul 14, 2026
Source:
[email protected]
CVE-2026-43638 Details - Not Deferred