{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89111","assignerOrgId":"e4686d1a-f260-4930-ac4c-2f5c992778dd","state":"PUBLISHED","assignerShortName":"sap","dateReserved":"2026-09-10T22:24:03.823Z","datePublished":"2026-10-13T00:24:28.269Z","dateUpdated":"2026-11-03T19:30:58.472Z"},"containers":{"cna":{"providerMetadata":{"orgId":"e4686d1a-f260-4930-ac4c-2f5c992778dd","shortName":"sap","dateUpdated":"2026-11-03T19:30:58.472Z"},"title":"OAuth2 SSRF vulnerability in SAP Cloud SDK for Python","problemTypes":[{"descriptions":[{"lang":"eng","cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery","type":"CWE"}]}],"affected":[{"vendor":"SAP_SE","product":"SAP Cloud","versions":[{"status":"affected","version":"sap-cloud-sdk < 0.45.2"},{"status":"affected","version":">=0.53.0","lessThan":"0.55.1","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.\n\n\n\nThis vulnerability was originally fixed in 0.45.2. It was reintroduced in 0.53.0 when the HTTP client was refactored into a shared core module, and the tenant subdomain validation was not carried over to the new location. The validation was restored in 0.55.1.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting multi-tenant BTP applications. An attacker who controls the <code>tenant_subdomain</code> parameter can redirect OAuth2 token requests to an attacker-controlled server, causing client credentials to be exfiltrated.</p><p>This vulnerability was originally fixed in <code>0.45.2</code>. It was reintroduced in <code>0.53.0</code> when the HTTP client was refactored into a shared core module, and the tenant subdomain validation was not carried over to the new location. The validation was restored in <code>0.55.1</code>.</p>"}]}],"references":[{"url":"https://github.com/SAP/cloud-sdk-python/security/advisories/GHSA-4mv3-jxxm-9cx2"},{"url":"https://url.sap/sapsecuritypatchday"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseSeverity":"CRITICAL","baseScore":10,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T19:14:40.871271Z","id":"CVE-2026-89111","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-14T19:14:49.793Z"}}]}}