Vulnerability · Published Oct 13, 2026 · Assigned by sap

CVE-2026-89105Improper Authentication in HybridTokenAuthenticator of SAP/cloud-security-services-integration-library

Medium 4.2

In plain English

A medium-severity security flaw in SAP/cloud-security-services-integration-library from SAP_SE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.1%top 96.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
SAP_SE	SAP/cloud-security-services-integration-library	>=3.6.6<4.1.1

Weakness: CWE-1188 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References