What is CVE-2026-89105?

CVE-2026-89105 is a medium-severity vulnerability in SAP Se Sap/cloud-Security-Services-Integration-Library, classified under Initialization of a Resource with an Insecure Default. CVSS score: 4.2/10. Published 2026-10-13.

How severe is CVE-2026-89105?

Medium severity. CVSS v3 base score is 4.2 out of 10.

RCE in SAP Se Sap/cloud-Security-Services-Integration-Library

CVE-2026-89105

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.

Published 2026-10-13 · last modified 2026-10-13.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

SAP Se Sap/cloud-Security-Services-Integration-Library — versions <4.1.1, >=3.6.6

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

Frequently asked questions

What is CVE-2026-89105?: CVE-2026-89105 is a medium-severity vulnerability in SAP Se Sap/cloud-Security-Services-Integration-Library, classified under Initialization of a Resource with an Insecure Default. CVSS score: 4.2/10. Published 2026-10-13.
How severe is CVE-2026-89105?: Medium severity. CVSS v3 base score is 4.2 out of 10.