CVE-2026-66766

Published: Aug 25, 2026Modified: Aug 26, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: CNA (Secondary)

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.

Related CWEs

CWE-1333

Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

References (2)

https://me.sap.com/notes/3771065

Source: cna@sap.com

https://url.sap/sapsecuritypatchday

Source: cna@sap.com

Timeline

No history available yet.