High 7.1Published Jun 25, 2026

CVE-2026-57520Bitwarden Server before 2026.5.0 contains a privilege escalation vulnerability that allows authenticated Custom users with ManageUsers permission to remove Admin accounts from an organization by expl…

Updated under an hour ago (2026-10-19 09:20 UTC)

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Every CVE for bitwarden server

Exploited in the last 30 days

Bitwarden Server before 2026.5.0 contains a privilege escalation vulnerability that allows authenticated Custom users with ManageUsers permission to remove Admin accounts from an organization by exploiting a missing role hierarchy check in the bulk user-remove endpoint. Attackers can supply Admin organization-user IDs in a bulk DELETE request to bypass the guard enforced on the single-user removal path, effectively removing one or more Admin accounts from an organization.

CVSS: 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

bitwarden server bitwarden:server	before 2026.5.0	NVD

References

https://github.com/bitwarden/server/commit/901bb67157c0f80d369c40b76742fdf7623da4e4patch
https://github.com/bitwarden/server/pull/7526issue-tracking
https://github.com/bitwarden/server/releases/tag/v2026.5.0release-notes
https://sanjokkarki.com.np/blog/bitwarden-bulk-remove-adminexploit, patch, third-party-advisory
https://www.vulncheck.com/advisories/bitwarden-server-privilege-escalation-via-bulk-user-remove-endpointthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.