CVE-2026-43640
8.1 · HIGHOverview
CVE-2026-43640 is a high-severity vulnerability affecting bitwarden server. It was published on May 11, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.
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, < 2026.4.1 | Affected |
References
Frequently Asked Questions
What is CVE-2026-43640?
CVE-2026-43640 is a high-severity vulnerability affecting bitwarden server. It was published on May 11, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2026-43640?
This vulnerability has a CVSS 3.1 base score of 8.1, 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-2026-43640?
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-2026-43640?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-43640 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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