Oracle security advisory (AV26-526)

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        <div><p><strong>Serial number: </strong>AV26-526&nbsp;<br /><strong>Date:</strong> May 29, 2026</p>

On May 28, 2026, Oracle published a security advisory to address critical vulnerabilities in the following products:

  • Oracle Communications Unified Assurance - versions 6.1.1 to 7.0.0
  • Oracle Database Server - versions 23.4.0 to 23.26.2
  • Oracle E-Business Suite - versions 12.2.3 to 12.2.15
  • Oracle Hospitality OPERA 5 Property Services - versions 5.6.19.24, 5.6.22, 5.6.25.19, 5.6.27.6 and 5.6.28
  • Oracle REST Data Services - versions 24.2.0 to 26.1.0

The Cyber Centre encourages users and administrators to review the provided web links and perform the suggested mitigations.

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Article Link: Oracle security advisory (AV26-526) - Canadian Centre for Cyber Security