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Security Bulletin: IBM App Connect Enterprise is vulnerable to multiple vulnerabilities due to Multer, form-data and on-headers (CVE-2025-7338, CVE-2025-7783 & CVE-2025-7339)

Security Bulletin


Summary

IBM App Connect Enterprise Connector Discovery and OpenAPI Editor, IBM App Connect Enterprise Discovery Connectors and IBM App Connect Enterprise Runtime are vulnerable to multiple vulnerabilities due to Multer, form-data and on-headers. This bulletin addresses those vulnerabilities.

Vulnerability Details

CVEID:   CVE-2025-7338
DESCRIPTION:   Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.
CWE:   CWE-248: Uncaught Exception
CVSS Source:   NVD
CVSS Base score:   7.5
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2025-7783
DESCRIPTION:   Use of Insufficiently Random Values vulnerability in form-data allows HTTP Parameter Pollution (HPP). This vulnerability is associated with program files lib/form_data.Js. This issue affects form-data: < 2.5.4, 3.0.0 - 3.0.3, 4.0.0 - 4.0.3.
CWE:   CWE-330: Use of Insufficiently Random Values
CVSS Source:   Harborist
CVSS Base score:   9.4
CVSS Vector:   (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N)

CVEID:   CVE-2025-7339
DESCRIPTION:   on-headers is a node.js middleware for listening to when a response writes headers. A bug in on-headers versions `<1.1.0` may result in response headers being inadvertently modified when an array is passed to `response.writeHead()`. Users should upgrade to version 1.1.0 to receive a patch. Uses are strongly encouraged to upgrade to `1.1.0`, but this issue can be worked around by passing an object to `response.writeHead()` rather than an array.
CWE:   CWE-241: Improper Handling of Unexpected Data Type
CVSS Source:   openjs
CVSS Base score:   3.4
CVSS Vector:   (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM App Connect Enterprise13.0.1.0 - 13.0.4.1
IBM App Connect Enterprise12.0.1.0 - 12.0.12.16

Remediation/Fixes

IBM strongly recommends addressing the vulnerability/vulnerabilities now by applying the appropriate fix to IBM App Connect Enterprise

Affected Product(s)Version(s)APARRemediation / Fixes
IBM App Connect Enterprise13.0.1.0 - 13.0.4.1IT48413

The APAR (IT48413) is available from

IBM App Connect Enterprise v13- Fix Pack Release 13.0.4.2

IBM App Connect Enterprise12.0.1.0 - 12.0.12.16IT48413

The APAR (IT48413) is available from

IBM App Connect Enterprise v12- Fix Pack Release 12.0.12.17

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

28 Aug 2025: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
28 August 2025

UID

ibm17243409