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CVE-2026-15640

Unrated

Published 2026-09-16 ยท last changed 2026-09-18

The fix

We hold no Microsoft remediation data for CVE-2026-15640, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Under certain conditions a valid SAML IdP response may be used to impersonate another Secret Server user.

Sources