CVE-2026-40128Network attack vector

Unauthenticated file access via logon path traversal

Published Jun 9, 2026 · Updated Jun 9, 2026

Path traversal in SAP NetWeaver Application Server Java Web Container ENGINEAPI 7.50 allows remote attackers to process local files. The Web Container processes attacker-controlled file-inclusion parameters without confining the included path to its intended context. No authentication is required; processing can expose or modify sensitive information or interrupt any part of the local system.

CVSS severity9.0
Critical
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in SAP NetWeaver Application Server Java Web Container ENGINEAPI 7.50 allows remote attackers to process local files. The Web Container processes attacker-controlled file-inclusion parameters without confining the included path to its intended context. No authentication is required; processing can expose or modify sensitive information or interrupt any part of the local system.

The record

CVE
CVE-2026-40128
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
cap-js
Product
SAP NetWeaver Application Server Java
Classifications
CWE-35, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=ENGINEAPI 7.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

cap-js · SAP NetWeaver Application Server Javaversion=ENGINEAPI 7.50

Published CVSS scores

9.0SAP SECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-35Path Traversal: '.../...//'
T1190Exploit Public-Facing Application

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo