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CVE-2026-89111GHSA-4mv3-jxxm-9cx2

OAuth2 SSRF vulnerability in SAP Cloud SDK for Python

SAP_SE SAP CloudApplications & CMS
Open in ThreatlineRecord JSON
CVSS
10.0Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.27%Chance of exploitation activity in the next 30 days, higher than 18% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0.45.2Fixed versionGitHub
Published13 Oct 2026Updated 14 Oct 2026CVE List

What fixes it

  • 0.45.2sap-cloud-sdk, pipGitHub

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 2

  • SAP Cloudaffected: sap-cloud-sdk < 0.45.2CVE List
  • sap-cloud-sdk, pip<0.45.2GitHub

References 2