Auth bypass in SAP Se S/4 Hana (Reprocess Bank Statement Items)

CVE-2026-66764

Reprocess Bank Statement Items in SAP S/4HANA does not perform the necessary authorization checks for authenticated users, allowing them to use rules that have not been shared with them, resulting in privilege escalation.This vulnerability has a low impact on confidentiality, with no impact on integrity and availability of the application

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-66764: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-66764?
CVE-2026-66764 is a medium-severity vulnerability in SAP Se S/4 Hana (Reprocess Bank Statement Items), classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-11.
How severe is CVE-2026-66764?
Medium severity. CVSS v3 base score is 4.3 out of 10.