CVE-2026-89105

Improper Authentication in HybridTokenAuthenticator of SAP/cloud-security-services-integration-library

Published Oct 13, 2026 CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Description
The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Sap
Sap cloud-security-services-integration-library
Vendors & Products Sap
Sap cloud-security-services-integration-library
Type Values Removed Values Added
Description The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.
Title Improper Authentication in HybridTokenAuthenticator of SAP/cloud-security-services-integration-library
Weaknesses CWE-1188
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
sap
Published
Updated
Oct 13, 2026, 1:28 PM
Reserved
Sep 10, 2026, 10:24 PM
Status
Awaiting Analysis
Published
Oct 13, 2026, 1:16 AM
Modified
Oct 15, 2026, 8:38 PM