High Threat Security Alert (A26-04-23): Multiple Vulnerabilities in Oracle Java and Oracle Products (April 2026)


 

Published on: 22 April 2026

Description:

Oracle has released the Critical Patch Update (CPU) Advisory with collections of patches for multiple security vulnerabilities found in Java SE and various Oracle products. The list of security updates can be found at:
https://www.oracle.com/security-alerts/cpuapr2026.html

Reports indicated that a remote code execution vulnerability (CVE-2021-45046) is being exploited in the wild and the proof-of-concept (PoC) exploit codes for multiple vulnerabilities (CVE-2022-45688, CVE-2023-1436, CVE-2023-34453, CVE-2023-46750, CVE-2024-6387, CVE-2024-29371, CVE-2024-31573, CVE-2025-0725, CVE-2025-15467, CVE-2025-24970, CVE-2025-26791, CVE-2025-27636, CVE-2025-35036, CVE-2025-53864, CVE-2025-54571, CVE-2025-58050, CVE-2025-58057, CVE-2025-58754, CVE-2025-59419, CVE-2025-61984, CVE-2025-65018, CVE-2025-67735, CVE-2025-68973, CVE-2026-0861, CVE-2026-21452, CVE-2026-22184, CVE-2026-23490, CVE-2026-25646, CVE-2026-27727, CVE-2026-27830 and CVE-2026-33870) are publicly available. System administrators are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.

 

Affected Systems:

  • Oracle Java SE
  • Database
  • Fusion Applications and Middleware
  • NoSQL Database
  • Oracle Linux and Virtualization
  • Oracle MySQL Product Suite
  • Oracle and Sun Systems Products Suite

A complete list of the affected products can be found at:

https://www.oracle.com/security-alerts/cpuapr2026.html

 

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution, denial of service, elevation of privilege, information disclosure, security restriction bypass or tampering 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 8u481 (JDK and JRE)
Java Platform SE 8u481-b50 (JDK and JRE)
Java Platform SE 8u481-perf (JDK and JRE)
Java Platform SE 11.0.30 (JDK and JRE)
Java Platform SE 17.0.18 (JDK and JRE)
Java Platform SE 21.0.10 (JDK and JRE)
Java Platform SE 25.0.1 (JDK and JRE)
Java Platform SE 25.0.2 (JDK and JRE)
Java Platform SE 26 (JDK and JRE)

https://www.oracle.com/java/technologies/javase-downloads.html

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

Users could also access the security advisory below for the information about the security updates of other Oracle products:
https://www.oracle.com/security-alerts/cpuapr2026.html

Users may contact their product support vendors for the fixes and assistance.

 

More Information:

  • https://www.oracle.com/security-alerts/cpuapr2026.html
  • https://www.hkcert.org/security-bulletin/oracle-products-multiple-vulnerabilities_20260422
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17521
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0341
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22573
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28168
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45046
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45047
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-45688
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1436
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2976
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-5388
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20863
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-26464
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34034
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34453
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-35116
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-44981
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46750
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52428
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-5535
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-6387
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-7254
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-8184
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-13009
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-29371
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-29857
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-31573
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36124
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43394
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-45339
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-51504
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56406
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-0725
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-1948
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-5115
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-5318
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-5372
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-6965
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-7962
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-8194
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-8869
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-8916
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-9086
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-9230
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-9232
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-9900
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-11143
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-12183
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-12383
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-12543
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-13151
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-13601
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-14017
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-14104
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-15284
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-15467
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-24970
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-26333
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-26791
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27636
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27817
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27820 (to CVE-2025-27821)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-31672
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-31948
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-32990
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-33042
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-35036
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-41242
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-41248 (to CVE-2025-41249)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-41253 (to CVE-2025-41254)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-43967
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-46392
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-46762
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-48734
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-48795
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-48913
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-48924
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-48976
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-52967
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-52999
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-53643
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-53864
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-54571
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55130
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55163
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55754
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58050
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58057
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58098
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58181
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-58754
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-59419
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-59465
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-59775
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-61729
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-61795
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-61984
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-64775
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-65018
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-65082
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-66418
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-66453
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-66566
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-67635
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-67735
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-68121
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-68161
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-68431
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-68615
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-68973
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-69223
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-0861
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-1642
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3288
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-20652
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21441
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21452
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21637
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21939
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21945
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21997 (to CVE-2026-21999)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-22001 (to CVE-2026-22011)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-22013 (to CVE-2026-22019)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-22021 (to CVE-2026-22022)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-22184
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-22801
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-23490
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-23865
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-23903
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-24734
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25210
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25646
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25968
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-25990
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-26007
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27099
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27727
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-27830
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-31790
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33870
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34266 (to CVE-2026-34310)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34312 (to CVE-2026-34315)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34317 (to CVE-2026-34321)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34323 (to CVE-2026-34325)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-35229 (to CVE-2026-35232)
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-35234 (to CVE-2026-35252)


Tag: Oracle , Java , Oracle Database , Fusion , Oracle NoSQL , Oracle Linux , MySQL , Sun Systems
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