{"id":"CVE-2026-89111","title":"The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting multi-tenant BTP applications","summary":"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, caus…","severity":"critical","cvss":10,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","cwe":["CWE-918"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T03:16:41.133","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89111","references":[{"url":"https://github.com/SAP/cloud-sdk-python/security/advisories/GHSA-4mv3-jxxm-9cx2","label":"cna@sap.com"},{"url":"https://url.sap/sapsecuritypatchday","label":"cna@sap.com"},{"url":"https://github.com/SAP/cloud-security-services-integration-library/security/advisories/GHSA-4mv3-jxxm-9cx2","label":"cna@sap.com"}],"tags":["nvd"],"ingestedAt":"2026-10-13T02:12:00.762Z","slug":"CVE-2026-89111","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":55,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}