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Security Bulletin: Authentication bypass vulnerability found in Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I)

Security Bulletin


Summary

IBM Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I) 1.5.20 has addressed an authentication vulnerability that may allow access to files in the local server storage.

Vulnerability Details

CVEID:   CVE-2026-7876
DESCRIPTION:   IBM Aspera High-Speed Transfer Server for CP4i is affected by an authentication bypass vulnerability. A transfer client may be able to take advantage of this vulnerability to access files in the server's local storage that they should not have access to, when specific restriction settings are not in place.
CWE:   CWE-287: Improper Authentication
CVSS Source:   IBM
CVSS Base score:   9.1
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
Aspera HSTS for CP4I1.5.1 - 1.5.19

Remediation/Fixes

Product(s)VRMFRemediation/First Fix
IBM Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I)1.5.20- Access your charts to get the latest version

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

The vulnerabilities were reported to IBM by Yannik Marchand.

Change History

26 May 2026: 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:
26 May 2026

Initial Publish date:
26 May 2026

UID

ibm17274127