---
id: CVE-2026-89105
title: >-
  The HybridTokenAuthenticator component of the
  SAP/cloud-security-services-integration-library accepts tokens from unintended
  ambient IAS/XSUAA bindings, potentially allowing unauthorized access
summary: >-
  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 g…
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-1188
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T01:16:47.240'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89105'
references:
  - url: >-
      https://github.com/SAP/cloud-security-services-integration-library/security/advisories/GHSA-857v-p42q-f3qf
    label: cna@sap.com
  - url: 'https://url.sap/sapsecuritypatchday'
    label: cna@sap.com
tags:
  - nvd
ingestedAt: '2026-10-13T02:12:00.760Z'
---

## Overview

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

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.