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Authentication Bypass via SAML Response Manipulation

CVSS 4.0 9.5 CRITICALCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-15640

Published

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

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-15640

Published

Secret Server (On-Prem)

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Delinea",
                    "product": "Secret Server (On-Prem)",
                    "platforms": [
                        "Windows"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "10.5.0",
                            "lessThanOrEqual": "12.1.3",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 13 Nov 09:00 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current