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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89105
StatePUBLISHED
Assignersap
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 01:16:47 UTC
Updated2026-10-15 20:38:04 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.2 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.001430000 probability, percentile 0.032410000 (date 2026-10-15)

Problem Types: CWE-1188 | CWE-1188 CWE-1188: Initialization of a Resource with an Insecure Default

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS4.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SAP SE SAP/cloud-security-services-integration-library affected >=3.6.6 Not specified
CNA SAP SE SAP/cloud-security-services-integration-library affected <4.1.1 Not specified

References

ReferenceSourceLinkTags
url.sap/sapsecuritypatchday [email protected] url.sap
github.com/SAP/cloud-security-services-integration-library/security/advi... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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