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CVE-2026-66766— Denial of Service (DoS) in SAP S/4HANA (Manage Supply Protection)

Quick assessment

Affected
SAP_SE SAP S/4HANA (Manage Supply Protection)
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 S/4HANA（私有云版）使用了包含正则表达式拒绝服务（ReDoS）漏洞的第三方组件。未授权的攻击者可以提供精心构造的输入，触发受影响功能中的过度处理。成功利用该漏洞可能导致系统资源耗尽，使服务不可用，从而对可用性造成高影响。此漏洞对机密性和完整性没有影响。

CVSS 7.5 · High EPSS 0.29% · P21

Affected Version Matrix 2

VendorProduct Version RangeStatus
SAP_SE SAP S/4HANA (Manage Supply Protection) UIS4HOP1 800 affected
900 affected
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I. Basic Information for CVE-2026-66766

Vulnerability Information
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Vulnerability Title
Denial of Service (DoS) in SAP S/4HANA (Manage Supply Protection)
Source: CVE Program / CVE List V5
Vulnerability Description
SAP S/4HANA (Private Cloud) uses a third-party component that contains a Regular Expression Denial of Service (ReDoS) vulnerability. An unauthenticated attacker could supply specially crafted input that triggers excessive processing within the affected functionality. Successful exploitation could exhaust system resources and make the service unavailable, resulting in a high impact on availability. There is no impact on confidentiality and integrity.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SAP_SE SAP S/4HANA (Manage Supply Protection) UIS4HOP1 800 -

II. Public POCs for CVE-2026-66766

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III. Intelligence Information for CVE-2026-66766

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Vendor Advisories for CVE-2026-66766 (1)

IV. Related Vulnerabilities

Same vendor: SAP_SE
Same weakness: CWE-1333

V. Comments for CVE-2026-66766

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