All vulnerabilities
CVE-2026-89105GHSA-857v-p42q-f3qf

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

SAP_SE SAP/cloud-security-services-integration-libraryApplications & CMS
Open in ThreatlineRecord JSON
CVSS
4.2Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 3% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published13 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 2

  • SAP/cloud-security-services-integration-libraryaffected: >=3.6.6CVE List
  • SAP/cloud-security-services-integration-libraryaffected: <4.1.1CVE List

References 2