IBM i PTF Guide, Volume 28, Number 15 - IT Jungle

April 13, 2026 Doug Bidwell

Well, this week’s security vulnerability looks pretty serious, so you best not skip this one. And as usual, it is happing with open source software embedded in the IBM i platform. The vulnerability is outlined in Security Bulletin: IBM i is Affected by Security Control Bypass and Uncontrolled Resource Consumption Vulnerabilities in IBM Java SDK and IBM Java Runtime [CVE-2026-21925, CVE-2026-21933, CVE-2026-21932, CVE-2026-21945].

You can read more about it at this link. Here is the list of remediations and fixes for the Java hole, which are available for IBM i 7.4, IBM i 7.5, and IBM i 7.6:

Remediation/Fixes, 5770-JV1			
IBM i Release PTF Number(s)		
7.6	       7.5		7.4
SJ08673	       SJ08672		SJ08671
SJ08677	       SJ08676		SJ08675
SJ08771	       SJ08770		SJ08769
SJ08786	       SJ08784		SJ08785
SJ08710	       SJ08690		SJ08689
SJ08711	       SJ08687		SJ08686
SJ08715	       SJ08709		SJ08708
SJ08732	       SJ08713		SJ08712
	       SJ08714	
	       SJ08731	
	       SJ06315

IBM recommends installing the 5770-JV1 PTF Group to receive all the latest PTF(s), which includes all PTFs in the above table.

IBM i Release	  PTF Download Link(s)
7.6	          SF99965 Level 5		
7.5	          SF99955 Level 20		
7.4	          SF99665 Level 32		
7.3	          SF99725 Level 41

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

PTF Groups 7.6:

Java
Defective PTFs
QMGTOOLS

PTF Groups 7.5:

Java
Defective PTFs
QMGTOOLS

PTF Groups 7.4:

Java
Defective PTFs
QMGTOOLS

PTF Groups 7.3:

Java
Defective PTFs
QMGTOOLS

PTF Groups 7.2:

None

Tip O’ The Week: Buy low and sell high. Always be a little cold and a little hungry. Never pass up a sunrise or a sunset if you can. They only take a few minutes, and they bookend the days. . . .

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