CVE-2026-15640
Received Received - Intake

Authentication Bypass via SAML Response in Secret Server

Publication date: 2026-09-16

Last updated on: 2026-09-16

Assigner: Delinea

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

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Meta Information

Published
2026-09-16
Last Modified
2026-09-16
Generated
2026-10-06
AI Q&A
2026-09-16
EPSS Evaluated
2026-10-05
NVD
CVE-2026-15640
EUVD
EUVD-2026-80069

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
delinea cloud_suite to 25.2_hf1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-290 This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

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Executive Summary

This vulnerability allows a valid SAML Identity Provider (IdP) response to be manipulated under certain conditions to impersonate another user in Secret Server. This means an attacker could gain unauthorized access to another user's account by exploiting flaws in how SAML responses are processed.

Impact Analysis

If exploited, this vulnerability could lead to unauthorized access to sensitive data, privilege escalation, or actions performed under another user's identity. This may result in data breaches, loss of confidentiality, or unauthorized system changes depending on the user's permissions.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR's data protection principles and HIPAA's security requirements. Organizations may face compliance violations, legal penalties, or reputational damage if such breaches occur due to inadequate security controls.

Mitigation Strategies

Apply the latest security patches or updates from Delinea for Secret Server to address the SAML IdP response validation issue. Ensure all users are authenticated properly and monitor for unauthorized access attempts.

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