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CVE-2026-436408.1HighCWE-303

CVE-2026-43640: Bitwarden Server < 2026.4.1 Authentication Bypass via SCIM API Key

bitwarden · server

Vendor fix available · Affected: bitwarden server · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
43rd percentile
050100

Higher than 43% of scored CVEs

8.1HighCVSS 3.1
LowHigh

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • bitwarden · serverbefore 2026.4.1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

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Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
bitwarden
Published
May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-43640 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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