CVE-2026-57520
7.1 · HIGHOverview
CVE-2026-57520 is a high-severity vulnerability affecting bitwarden server. It was published on June 25, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from bitwarden. Update server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| bitwarden | server | >= 0, < 2026.5.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-57520?
CVE-2026-57520 is a high-severity vulnerability affecting bitwarden server. It was published on June 25, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2026-57520?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-57520?
Check the references section for vendor advisories and patches from bitwarden. Update server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-57520?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-57520 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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