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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
SAP_SE SAP/cloud-security-services-integration-library unaffected
Version Status Constraints
>=3.6.6 affected —
<4.1.1 affected —

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/SAP/cloud-security-services-integration-library/security/advisories/GHSA-857v-p42q-f3qf cve-icon cve-icon
https://url.sap/sapsecuritypatchday cve-icon cve-icon
History

Tue, 13 Oct 2026 01:00:00 +0000

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'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: sap

Published:

Updated: 2026-10-13T00:23:29.772Z

Reserved: 2026-09-10T22:24:03.822Z

Link: CVE-2026-89105

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-13T01:16:47.240

Modified: 2026-10-13T01:16:47.240

Link: CVE-2026-89105

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T03:00:11Z

Weaknesses