Vulnerability in SAP Se S/4hana (Manage Supply Protection)
CVE-2026-66766
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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.003 (21.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Sap_se Sap S/4hana (Manage Supply Protection) — versions 900, UIS4HOP1 800
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-66766?
- CVE-2026-66766 is a high-severity vulnerability in SAP Se S/4hana (Manage Supply Protection), classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2026-08-25.
- How severe is CVE-2026-66766?
- High severity. CVSS v3 base score is 7.5 out of 10.