CVE-2026-15640criticalCWE-290

CVE-2026-15640: critical vulnerability in Delinea Secret Server (On-Prem)

Authentication Bypass via SAML Response Manipulation

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.5epss 0.3%
Under certain conditions a valid SAML IdP response may be used to impersonate another Secret Server user.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H
Affected products
Delinea · Secret Server (On-Prem)
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