CVE-2026-89111

CRITICAL
INFO Priority: 0.04 BB Relevance: 80/100
Published: 2026-10-13 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Changed
C: High
I: High
A: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
SAP_SE SAP Cloud sap-cloud-sdk < 0.45.2
SAP_SE SAP Cloud >=0.53.0 < 0.55.1

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

10.0 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

EPSS — Exploitation Probability

0.37%
Raw Score 0.003720
Percentile 31.2%
Date 2026-10-31

EPSS Trend

2026-10-31
0.00372
2026-10-30
0.00372

Intelligence Sources

mitre ref →
nvd ref →