IBM i PTF Guide, Volume 28, Numbers 18 And 19

June 1, 2026 Doug Bidwell

Welcome back to the IBM i PTF Guide! After traversing across the country to our new abode, we are ready to get back in the saddle and rustle up all of the patches and security vulnerabilities for you.

Let’s start, as we often do, with the security stuff. First, we have Security Bulletin: IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins (CVE-2026-8633, CVE-2026-8620), which you can read about at this link. The affected products for this are Web Server Plug-ins for WebSphere Application Server and IBM WebSphere Liberty 8.5 and 9.0.

We also have Security Bulletin: IBM i is Affected by an Improper Validation Vulnerability in zlib [CVE-2026-27171], with more information available at this link. The patches for this vulnerability by release are as follows:

IBM i Release	5770-SC1 	PTF Number(s)
7.6				SJ09728	
7.5				SJ09726	
7.4				SJ09723	
7.3				SJ09723

Here is the rundown of PTF Groups by IBM i release level since we last published:

PTF Groups 7.6:

HIPERs – High Impact/Pervasive
Group Security
QMGTOOLS
RPG Café
Visual Studio Code for IBM i

PTF Groups 7.5:

HIPERs – High Impact/Pervasive
Group Security
QMGTOOLS
RPG Café
Visual Studio Code for IBM i

PTF Groups 7.4:

HIPERs – High Impact/Pervasive
Group Security
QMGTOOLS
RPG Café
Visual Studio Code for IBM i

PTF Groups 7.3:

HIPERs – High Impact Pervasive
Group Security
QMGTOOLS
RPG Café
Visual Studio Code for IBM i

PTF Groups 7.2:

None

Tip O’ The Week: The System Planning Tool, version 6.26.104.0, is now available for download at https://www.ibm.com/support/pages/node/632531.

New (or Updated) links added to the ‘Links’ tab in The Guide this week:

CGI: CGI Troubleshooting, 1171114
MustGather: Recovery Objects, 666877

New (or Updated) links added to the ‘QMGtools’ tab in The Guide this week:

None

New (or Updated) links added to the ‘ACS_NAV’ tab in The Guide this week:

None

New (or Updated) links added to the ‘Prtr Links’ tab in The Guide this week:

None

New (or Updated) links Redbooks added this week:

None

New (or Updated) stuff added to REF tab in The Guide this week:

None

New (or Updated) links in the TAPE tab in The Guide this week:

None

New (or Updated) links in the WAS tab in The Guide this week:

None

The Guide at a glance: There were new defectives the week of 05/30/26. Defective PTF rundown – the latest defective for each release. Click on the Defective PTF link for your release in the Guide:

	Defect		Defective	APAR		Fixing
	Date		PTF				PTF
	--------	--------	---------	-----------------------	
7.6	10/04/26	SJ08676	        DT467722	SJ09203	(When available)(read the recommendations)
								Read the cover letter-prerequisites!		

7.5	10/04/26	SJ08676	        DT467722	SJ09202 (When available)(read the recommendations)
				 				Read the cover letter-prerequisites!                   
						 
7.4	10/04/26	SJ08675	        DT467722	SJ09201	Same as above, Please read the Cover letter - 
								(When available)(read the recommendations)
								Read the cover letter-prerequisites!

7.3	10/04/26	SJ08674	        DT467722	SJ09200 (When available)(read the recommendations)

Be sure to access the link in The Guide for further details.

Below is the usual archive of the IBM i PTF Guide to help you work through the PTFs in chronological order:

May 30, 2026: Volume 28, Number 19

May 23, 2026: Volume 28, Number 18

April 25, 2026: Volume 28, Number 17

April 18, 2026: Volume 28, Number 16

April 11, 2026: Volume 28, Number 15

April 4, 2026: Volume 28, Number 14

March 28, 2026: Volume 28, Number 13

March 23, 2026: Volume 28, Number 12

March 14, 2026: Volume 28, Number 11

March 7, 2026: Volume 28, Number 10