CVE-2026-89111SAP Cloud SSRF
The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting multi-tenant BTP applications.
Published Oct 13, 2026 · Updated Oct 16, 2026 · Also known as EUVD-2026-98193, GHSA-4mv3-jxxm-9cx2, GHSA-m3j7-wp2j-mhc3
Key Facts
Patch in the next maintenance window- CVE-2026-89111 is a critical-severity vulnerability (CVSS 10.0 v3.1) affecting SAP Cloud.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 0.3% probability of exploitation in the next 30 days.
- Fixed versions are available, including SAP Cloud 0.45.2.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Scores
CVSS v3.1
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS (30-day exploit likelihood)
0.3%
Exploit maturity
None known
ATLAS score
31/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
None known
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
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.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SAP Cloud | >= sap-cloud-sdk, >= sap-cloud-sdk < 0.45.2 | 0.45.2 |
Patched Releases
SAP Cloud
0.45.2
Timeline
Publicly disclosed
Oct 13, 2026
Last updated
Oct 16, 2026
Weakness Type
- CWE-918 Server-Side Request Forgery (SSRF)
References
- advisorycve.org · CVERecord
- advisorynvd.nist.gov · CVE-2026-89111
- advisoryUSOM advisory
- othergithub.com · GHSA-4mv3-jxxm-9cx2
- otherurl.sap · sapsecuritypatchday
FAQ
Common Questions.
The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting multi-tenant BTP applications.
Affected: SAP Cloud versions >= sap-cloud-sdk, >= sap-cloud-sdk < 0.45.2. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including SAP Cloud 0.45.2.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
Is CVE-2026-89111 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo