CVE-2026-34257— Open Redirect vulnerability in SAP NetWeaver Application Server ABAP
Quick assessment
Affected
SAP_SE SAP NetWeaver Application Server ABAP
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 NetWeaver Application Server ABAP是德国思爱普（SAP）公司的一个运行和开发基于ABAP语言的应用程序的平台。 SAP NetWeaver Application Server ABAP存在输入验证错误漏洞，该漏洞源于存在开放重定向漏洞，可能导致未经身份验证的攻击者制作恶意URL，将受害者重定向到攻击者控制的页面。
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I. Basic Information for CVE-2026-34257
Vulnerability Information
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Vulnerability Title
Open Redirect vulnerability in SAP NetWeaver Application Server ABAP
Source: CVE Program / CVE List V5
Vulnerability Description
Due to an Open Redirect vulnerability in SAP NetWeaver Application Server ABAP, an unauthenticated attacker could craft malicious URL that, if accessed by a victim, they could be redirected to the page controlled by the attacker. This causes low impact on confidentiality and integrity of the application with no impact on availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
SAP NetWeaver Application Server ABAP 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAP NetWeaver Application Server ABAP是德国思爱普（SAP）公司的一个运行和开发基于ABAP语言的应用程序的平台。 SAP NetWeaver Application Server ABAP存在输入验证错误漏洞，该漏洞源于存在开放重定向漏洞，可能导致未经身份验证的攻击者制作恶意URL，将受害者重定向到攻击者控制的页面。
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 NetWeaver Application Server ABAP | SAP_BASIS 700 | - |
|
II. Public POCs for CVE-2026-34257
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · SAP_SE · 2026-04-14 · 17 CVEs total
| CVE-2026-27681 | 9.9 CRITICAL | SQL Injection vulnerability in SAP Business Planning and Consolidation and SAP Business Wa |
| CVE-2026-34256 | 7.1 HIGH | Missing Authorization check in SAP ERP and SAP S/4 HANA (Private Cloud and On-Premise) |
| CVE-2026-34264 | 6.5 MEDIUM | Information Disclosure vulnerability in SAP Human Capital Management for SAP S/4HANA |
| CVE-2026-34261 | 6.5 MEDIUM | Missing Authorization check in SAP Business Analytics and SAP Content Management |
| CVE-2026-27679 | 6.5 MEDIUM | Missing Authorization check in SAP S/4HANA Frontend OData Service (Manage Reference Struct |
| CVE-2026-27678 | 6.5 MEDIUM | Missing Authorization check in SAP S/4HANA Backend OData Service (Manage Reference Structu |
| CVE-2026-27677 | 6.5 MEDIUM | Missing Authorization check in SAP S/4HANA OData Service (Manage Reference Equipment) |
| CVE-2026-27674 | 6.1 MEDIUM | Code Injection vulnerability in SAP NetWeaver Application Server Java (Web Dynpro Java) |
| CVE-2026-0512 | 6.1 MEDIUM | Cross-Site Scripting (XSS) vulnerability in SAP Supplier Relationship Management (SICF Han |
| CVE-2026-34262 | 5.0 MEDIUM | Information Disclosure Vulnerability in SAP HANA Cockpit and HANA Database Explorer |
| CVE-2026-27673 | 4.9 MEDIUM | Missing Authorization Check in SAP S/4HANA (Private Cloud and On-Premise) |
| CVE-2026-27676 | 4.3 MEDIUM | Missing Authorization check in SAP S/4HANA OData Service (Manage Technical Object Structur |
| CVE-2026-27672 | 4.3 MEDIUM | Missing Authorization check in Material Master Application |
| CVE-2026-24318 | 4.2 MEDIUM | Insecure Session Management vulnerability in SAP BusinessObjects Business Intelligence Pla |
| CVE-2026-27683 | 4.1 MEDIUM | Reflected cross site scripting vulnerability in SAP BusinessObjects Business Intelligence |
| CVE-2026-27675 | 2.0 LOW | Code Injection vulnerability in SAP Landscape Transformation |
IV. Related Vulnerabilities
Same product: SAP NetWeaver Application Server ABAP
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Information Disclosure vulnerability in SAP Web Dispatcher,
Same weakness: CWE-601
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Open Redirect in Special:Book
V. Comments for CVE-2026-34257
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