CVE-2026-15640
UnratedPublished 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.