IBM Support

Security Bulletin: IBM API Connect is affected by sensitive information leakage in LoopBack (CVE-2019-4382)

Security Bulletin


API Connect has addressed the following vulnerability.

Vulnerability Details

CVEID: CVE-2019-4382
DESCRIPTION: IBM API Connect could allow an unauthorized user to obtain sensitive information about the system users using specially crafted HTTP requests.
CVSS Base Score: 5.3
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM API Connect iFix 1


Affected Product Fixed In VRMF APAR Remediation / First Fix
IBM API Connect V5.0.0.0 - iFix 1 iFix 2 LI80922

Addressed in IBM API Connect V5.0.8.6 iFix 2 provided June 14, 2019.

Follow this link and find the appropriate packages for your deployment.

Get Notified about Future Security Bulletins



Change History

June 15th, 2019: Original bulletin published.

*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.


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.

Internal Use Only

<To be published after the next 5086 iFix goes out in June - Check with Ivy Ho>

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSMNED","label":"IBM API Connect"},"Component":"Loopback","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":" iFix 1","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
15 June 2019