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SAP Discloses Critical CVSS 10 Flaw in Cloud SDK for Python Allowing OAuth2 Credential Theft

thehackernews.com 2026-10-13 data leakage Critical

What Happened

A flaw in SAP's Cloud SDK for Python can send an application's OAuth2 client credentials to a server an attacker controls, SAP said in a security advisory on October 13. The flaw affects multi-tenant applications on SAP Business Technology Platform (BTP) that use the SDK, SAP's official Python client for BTP services. An attacker must be able to control the tenant subdomain,

Why It Matters

Report facts: CVE-2026-89111 is a CVSS 10 OAuth2 SSRF vulnerability in SAP Cloud SDK for Python that can expose application client credentials when an attacker controls the tenant subdomain; patched versions add validation for this input. RealGround analysis: Applications or AI agents using affected BTP integrations could experience credential and downstream data exposure, so teams should inventory SDK usage, validate tenant identifiers, apply fixed versions, and rotate potentially exposed secrets.

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RealGround Analysis

This signal maps to data leakage. Organizations using AI agents, LLM APIs, SaaS integrations, or sensitive data workflows should review whether this class of issue could create unauthorized tool execution, data leakage, weak approval gates, or unmanaged supply-chain exposure.

Recommended Actions

  • Restrict AI agent tool permissions and production write paths.
  • Review sensitive data access across prompts, logs, embeddings, memory, and SaaS integrations.
  • Add human approval workflows for high-impact or state-changing actions.
  • Run prompt injection and indirect prompt injection tests against affected workflows.
  • Document the owner, control gap, and remediation deadline for this risk class.

Source

https://thehackernews.com/2026/10/sap-discloses-critical-cvss-10-flaw-in.html

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