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10.0
CVE-2026-89111
sap · sap cloud

OAuth2 SSRF vulnerability in SAP Cloud SDK for Python

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

VendorProductVersions
sapsap cloudsap-cloud-sdk < 0.45.2

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
sapsap softwarecert_advisory90%

References

  • https://github.com/SAP/cloud-sdk-python/security/advisories/GHSA-4mv3-jxxm-9cx2
  • https://url.sap/sapsecuritypatchday

Related News (3 articles)

Tier D
Heise Security5h ago
Patchday SAP: Angreifer können Systeme übernehmen
→ No new info (linked only)
Tier B
BSI Advisories6h ago
[NEU] [hoch] SAP Patch Day Oktober 2026: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB17h ago
CVE-2026-89111 | SAP Cloud SDK up to 0.45.1 OAuth2 tenant_subdomain server-side request forgery
→ No new info (linked only)

Discussion (0)

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CVSS 3.110.0 CRITICAL
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CISA KEV❌ No
Actively exploited❌ No
CWECWE-918
PublishedOct 13, 2026
Trending Score45
Source articles3
Independent3
Info Completeness0/14
Missing: cve_id, title, description, vendor, product, versions, cvss, epss, cwe, kev, exploit, patch, iocs, mitre_attack

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CRITICALCVE-2026-89110
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CRITICALCVE-2026-89107
Code Injection vulnerability in SAP S/4HANA (Manage Substitution/Validation Rules)
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CRITICALCVE-2026-89108
Missing Authorization check in SAP Manufacturing Integration and Intelligence (Configuration Service)
Trending: 49
HIGHCVE-2026-58249
Memory Corruption vulnerability in SAP NetWeaver and SAP Web Dispatcher (Internet Communication Manager)
Trending: 47

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Oct 13, 2026
Discovered by ZDM
Oct 13, 2026