CVE-2026-27678 | SAP S4HANA Backend OData Service 4CORE 109 Manage Reference Structures authorization

VDB-357271 · CVE-2026-27678 · GCVE-0-2026-27678 SAP S4HANA BACKEND ODATA SERVICE 4CORE 109 MANAGE REFERENCE STRUCTURES AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 1.86+ Summaryinfo A vulnerability was found in SAP S4HANA Backend OData Service 4CORE 109. It has been classified as problematic. This affects an unknown part of the component Manage Reference Structures. This manipulation causes authorization. This vulnerability is handled as CVE-2026-27678. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply a patch to fix this issue. Detailsinfo A vulnerability was found in SAP S4HANA Backend OData Service 4CORE 109. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Manage Reference Structures. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity. The summary by CVE is: Due to missing authorization checks in the SAP S/4HANA backend OData Service (Manage Reference Structures), an attacker could update and delete child entities via exposed OData services without proper authorization. This vulnerability has a high impact on integrity, while confidentiality and availability are not impacted. It is possible to read the advisory at me.sap.com. This vulnerability is known as CVE-2026-27678 since 02/23/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/14/2026). Applying a patch is able to eliminate this problem. Productinfo Vendor SAP Name S4HANA Backend OData Service Version 4CORE 109 License commercial Website Vendor: https://www.sap.com/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 5.4 VulDB Meta Temp Score: 5.3 VulDB Base Score: 4.3 VulDB Temp Score: 4.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.5 CNA Vector (sap): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-862 / CWE-863 / CWE-285 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Patch Status: 🔍 0-Day Time: 🔒 Timelineinfo 02/23/2026 CVE reserved 04/14/2026 +49 days Advisory disclosed 04/14/2026 +0 days VulDB entry created 04/14/2026 +0 days VulDB entry last update Sourcesinfo Vendor: sap.com Advisory: me.sap.com Status: Confirmed CVE: CVE-2026-27678 (🔒) GCVE (CVE): GCVE-0-2026-27678 GCVE (VulDB): GCVE-100-357271 scip Labs: https://www.scip.ch/en/?labs.20150716 Entryinfo Created: 04/14/2026 08:05 Changes: 04/14/2026 08:05 (62) Complete: 🔍 Cache ID: 99:FEB:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸