CVE-2026-15640 PUBLISHED

Authentication Bypass via SAML Response Manipulation

Assigner: Delinea
Reserved: 13.07.2026 Published: 15.09.2026 Updated: 16.09.2026

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

CVSS Vector: 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
CVSS Score: 9.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	High	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	None	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Vendor	Delinea
Product	Secret Server (On-Prem)
Versions	Default: unaffected affected from 10.5.0 to 12.1.3 (incl.)

Upgrade to secret server version 12.2.7 or later