IBM Support

Security Bulletin: Multiple security vulnerabilities in .NET affect IBM Robotic Process Automation

Security Bulletin


Summary

Multiple security vulnerabilities in .NET affect IBM Robotic Process Automation. .NET is used by IBM Robotic Process as part of it's development framework. This security bulletin identifies the fixes required to resolve these vulnerabilities

Vulnerability Details

CVEID:   CVE-2026-41319
DESCRIPTION:   MailKit is a cross-platform mail client library built on top of MimeKit. A STARTTLS Response Injection vulnerability in versions prior to 4.16.0 allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary, enabling SASL authentication mechanism downgrade (e.g., forcing PLAIN instead of SCRAM-SHA-256). The internal read buffer in `SmtpStream`, `ImapStream`, and `Pop3Stream` is not flushed when the underlying stream is replaced with `SslStream` during STARTTLS upgrade, causing pre-TLS attacker-injected data to be processed as trusted post-TLS responses. Version 4.16.0 patches the issue.
CWE:   CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVSS Source:   NVD
CVSS Base score:   5.9
CVSS Vector:   (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Robotic Process Automation for Cloud Pak23.0.0 - 23.0.20.6, 30.0.0 - 30.0.2

 

 

 

 

 

 

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now.
Product(s)Version(s) number and/or range Remediation/Fix/Instructions
IBM Robotic Process Automation for Cloud Pak23.0.0 - 23.0.20.6Update to 23.0.20.7 or higher using the following instructions

IBM Robotic Process Automation for Cloud Pak

30.0.0 - 30.0.2Update to 30.0.3 or higher using the following instructions.

 

These vulnerabilities affect the IBM Robotic Process Automation server.

 

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

01 Sep 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

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC50T","label":"IBM Robotic Process Automation"},"Component":"","Platform":[{"code":"PF033","label":"Windows"},{"code":"PF040","label":"RedHat OpenShift"}],"Version":"30.0.2 - 23.0.20.6","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

Document Information

Modified date:
01 September 2026

Initial Publish date:
01 September 2026

UID

ibm17285990