CVE-2026-89111

LOWCVSS 10.0 · CRITICAL

Signal is active with 3 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • 3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-10-13: 310-13
Referenced assets2 URLs
Full discourse3 posts
  • SNOK@SNOKSEC

    SAP Security Patch Day, October 2026: 22 items, 4 critical. The only 10.0 is not an SAP Note. CVE-2026-89111 sits in the SAP Cloud SDK for Python, so the fix is a package upgrade on SAP BTP, not SNOTE. Workarounds exist for 3797111 and 3805589. https://snok.ai/en/news/blog/sap-security-patch-day-october-2026/?utm_source=x&utm_medium=social&utm_campaign=patch-day-2026-10&utm_content=snoksec

    0000012
    13 followersView on X
  • Upwind Security MDR@UpwindMDR

    🚨Critical - SAP Cloud SDK for Python OAuth2 SSRF via tenant_subdomain Redirect (CVE-2026-89111) SAP Cloud SDK for Python’s OAuth2 token retrieval uses the tenant_subdomain parameter to build the token endpoint; if attacker-controlled in multi-tenant SAP BTP apps, it can SSRF token requests to an attacker server and leak client_id/client_secret. Single-tenant apps without user-influenced tenant_subdomain are not impacted. 👉Affected: sap-cloud-sdk (SAP Cloud SDK for Python) versions unknown

    0000066
    318 followersView on X
  • takenaka hiroya@Joe_Biden_ja

    SAP Cloud SDK for Python に CVSS 10.0 の SSRF(CVE-2026-89111)。OAuth2 のクライアント認証情報が漏れるおそれがあります。sap-cloud-sdk 0.45.2 未満を使っていれば更新を。 https://cve.autoarticles.net/cve/CVE-2026-89111

    0000034
    557 followersView on X

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