This problem is caused by the CA 1 Catalog Interface. It is addressed by CA Common Tape (CM-$F) Problem 298. Following details for PTF SO13571
Title: CORRECT SECURITY CALL DURING A MERGECAT OPERATION
PROBLEM DESCRIPTION:
For CA 1 clients when OCEOV is set to YES and an attempt is made to perform
a REPRO MERGECAT operation, without access to the data set names being
merged, it will fail with a security violation.
SYMPTOMS:
A security-violation on an individual file will prevent the IDCAMS procedure
from ending correctly.
IMPACT:
Cannot perform the MERGECAT operation.
CIRCUMVENTION:
A circumvention would be to disable the CA 1 check at OPEN and enable the
same call from OPEN itself. This can be done by changing OCEOV to NO in the
TMOOPTxx member of CA 1 options and setting the TAPEAUTHDSN=YES option in
DEVSUPxx member of SYS1.PARMLIB instead.