CVE-2026-34256Network attack vector

Report functionality loss via unauthorized ABAP overwrite

Published Apr 14, 2026 · Updated Apr 14, 2026

Missing authorization in SAP ERP and SAP S/4HANA allows remote authenticated users to overwrite executable ABAP reports. The affected Joint Venture Accounting report performs the overwrite without checking whether the caller is authorized to replace the selected report. Low-privileged authenticated access is required; the overwritten report's intended function becomes unavailable only after that report is executed.

CVSS severity7.1
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in SAP ERP and SAP S/4HANA allows remote authenticated users to overwrite executable ABAP reports. The affected Joint Venture Accounting report performs the overwrite without checking whether the caller is authorized to replace the selected report. Low-privileged authenticated access is required; the overwritten report's intended function becomes unavailable only after that report is executed.

The record

CVE
CVE-2026-34256
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1SAP SECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

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.

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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-862Missing Authorization
T1565.001Stored Data Manipulation

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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