CVE-2026-66764Network attack vector

Authenticated access to unshared rules via missing authorization

Published Aug 11, 2026 · Updated Aug 11, 2026

Authorization bypass in SAP S/4HANA S4CORE 104 through 109 allows remote authenticated users to access unshared processing rules. The rule-selection path in Reprocess Bank Statement Items accepts a requested processing rule without verifying that the rule was shared with the requester. A valid low-privileged account and app access are required; exposure is limited to rule data, with no reported integrity or availability impact.

CVSS severity4.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in SAP S/4HANA S4CORE 104 through 109 allows remote authenticated users to access unshared processing rules. The rule-selection path in Reprocess Bank Statement Items accepts a requested processing rule without verifying that the rule was shared with the requester. A valid low-privileged account and app access are required; exposure is limited to rule data, with no reported integrity or availability impact.

The record

CVE
CVE-2026-66764
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
cap-js
Product
SAP S/4 HANA (Reprocess Bank Statement Items)
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=105
  2. Affected versionversion=106
  3. Affected versionversion=107
  4. Affected versionversion=108
  5. Affected versionversion=109
  6. Affected versionversion=S4CORE 104

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

cap-js · SAP S/4 HANA (Reprocess Bank Statement Items)version=105; version=106; version=107; version=108; version=109; version=S4CORE 104

Published CVSS scores

4.3SAP SECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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