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CVE-2026-44753— Information Disclosure vulnerability in SAP HANA Extended Application Services classic model (User Self Service)

Quick assessment

Affected
SAP_SE SAP HANA Extended Application Services classic model (User Self Service)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SAP hana database是德国SAP公司的一个高性能内存数据库系统。 SAP HANA Database存在侧信道信息泄露漏洞，该漏洞源于响应差异问题，可能导致未经身份验证的用户发送特制请求枚举有效用户账户和电子邮件地址，对机密性造成低影响。

CVSS 3.7 · Low EPSS 0.35% · P26

Possible ATT&CK Techniques 1 AI

T1207 · Rogue Domain Controller

Affected Version Matrix 1

VendorProduct Version RangeStatus
SAP_SE SAP HANA Extended Application Services classic model (User Self Service) HDB 2.00 affected
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I. Basic Information for CVE-2026-44753

Vulnerability Information
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Vulnerability Title
Information Disclosure vulnerability in SAP HANA Extended Application Services classic model (User Self Service)
Source: CVE Program / CVE List V5
Vulnerability Description
SAP HANA Database (user self service tools) allows an unauthenticated user to send specially crafted requests that produce distinguishable responses, enabling enumeration of valid user accounts and email addresses. Successful exploitation could allow the attacker to enumerate valid user accounts, resulting in low impact on confidentiality, with no impact on integrity and availability of the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
SAP HANA Database 侧信道信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAP hana database是德国SAP公司的一个高性能内存数据库系统。 SAP HANA Database存在侧信道信息泄露漏洞，该漏洞源于响应差异问题，可能导致未经身份验证的用户发送特制请求枚举有效用户账户和电子邮件地址，对机密性造成低影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SAP_SE SAP HANA Extended Application Services classic model (User Self Service) HDB 2.00 -

II. Public POCs for CVE-2026-44753

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III. Intelligence Information for CVE-2026-44753

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Vendor Pages for CVE-2026-44753 (1)

Same Patch Batch · SAP_SE · 2026-07-14 · 15 CVEs total

CVE-2026-44747 9.9 CRITICAL Memory Corruption vulnerability in SAP NetWeaver Application Server ABAP
CVE-2026-27690 9.1 CRITICAL HTTP Request Smuggling in SAP Approuter
CVE-2026-44761 9.1 CRITICAL Insecure Sample Credentials in SAP Commerce Cloud
CVE-2026-0487 8.4 HIGH DLL Hijacking vulnerability in SAProuter on Microsoft Windows
CVE-2026-44752 8.2 HIGH Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server Java(Configur
CVE-2026-44745 8.1 HIGH Open Redirect vulnerability in SAP Approuter
CVE-2026-58233 7.6 HIGH Remote Code Execution vulnerability in SAP Change and Transport System Attach Tool (ctsatt
CVE-2026-44767 6.1 MEDIUM Allowlist Bypass in setThemeRoot() Enables Cross-Origin CSS Injection
CVE-2026-44759 6.1 MEDIUM Cross Site Scripting (XSS) vulnerability in SAP NetWeaver Enterprise Portal
CVE-2026-44769 5.5 MEDIUM SQL Injection vulnerability in SAP S/4HANA Project Management (PPM-PRO)
CVE-2026-44760 4.7 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (applica
CVE-2026-44771 4.3 MEDIUM Missing Authorization check in SAP S/4HANA (Draft operation)
CVE-2026-44770 4.3 MEDIUM Missing Authorization check in SAP S/4 HANA (Create Single Payment)
CVE-2026-44768 4.1 MEDIUM Security misconfiguration in SAP CRM (WebClient UI)

IV. Related Vulnerabilities

Same vendor: SAP_SE
Same weakness: CWE-204

V. Comments for CVE-2026-44753

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