Security Alert (A26-10-43): Vulnerability in Oracle Products


 

Published on: 22 October 2026

Description:

Oracle has released a security update to address a vulnerability in Oracle Products. The list of patches and details can be found at:
https://www.oracle.com/security-alerts/alert-CVE-2026-91403.html

 

Affected Systems:

  • Oracle Java SE

For detailed information of the affected systems, please refer to the corresponding security advisories at vendor's website.

 

Impact:

Successful exploitation of the vulnerability could lead to security restriction bypass on an affected system.

 

Recommendation:

Patches for affected systems are available. Users of the affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.

For Oracle Java SE products, please refer to the following link:
Java Platform SE 8u511 (JDK and JRE)
Java Platform SE 11.0.33 (JDK and JRE)
Java Platform SE 17.0.21 (JDK and JRE)
Java Platform SE 21.0.13 (JDK and JRE)
Java Platform SE 25.0.5.0.2 (JDK and JRE)
Java Platform SE 27.0.1.0.2 (JDK and JRE)
https://www.oracle.com/java/technologies/javase-downloads.html

For OpenJDK, please refer to the following link:
https://jdk.java.net

System administrators should contact their product support vendors for the fixes and assistance.

 

More Information:

  • https://www.oracle.com/security-alerts/alert-CVE-2026-91403.html
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-91403


Tag: Oracle
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