CVE-2026-89111

Critical10.0 Published on Oct 13, 2026

The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting multi-tenant BTP applications. An attacker who controls the tenant_subdomain parameter can redirect OAuth2 token requests to an attacker-controlled server, causing client credentials to be exfiltrated.

CVSS score10.0 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weakness type (CWE)CWE-918

Vulnerabilities

SAP Fixes OAuth2 SSRF That Can Expose BTP Application Credentials

SAP fixed an OAuth2 SSRF in Cloud SDK for Python that can expose BTP app credentials via tenant_subdomain. Learn affected versions and upgrade guidance.

Oct 13, 202615:37 2 min readRead

This product uses the NVD API but is not endorsed or certified by the NVD.

CVE database

CVE-2026-89111

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SAP Fixes OAuth2 SSRF That Can Expose BTP Application Credentials

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