Bug 2557757 (CVE-2026-83378) - CVE-2026-83378 openjdk: Improve C2 loop transformations (Oracle CPU 2026-10)
Summary: CVE-2026-83378 openjdk: Improve C2 loop transformations (Oracle CPU 2026-10)
Keywords:
Status: NEW
Alias: CVE-2026-83378
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-21 00:27 UTC by OSIDB Bzimport
Modified: 2026-10-30 00:16 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:88347 0 None None None 2026-10-27 20:18:06 UTC
Red Hat Product Errata RHSA-2026:88348 0 None None None 2026-10-29 14:10:30 UTC
Red Hat Product Errata RHSA-2026:88349 0 None None None 2026-10-30 00:16:47 UTC
Red Hat Product Errata RHSA-2026:88350 0 None None None 2026-10-29 12:25:59 UTC
Red Hat Product Errata RHSA-2026:88351 0 None None None 2026-10-29 12:26:48 UTC
Red Hat Product Errata RHSA-2026:90504 0 None None None 2026-10-29 21:39:25 UTC
Red Hat Product Errata RHSA-2026:90912 0 None None None 2026-10-29 14:11:06 UTC

Description OSIDB Bzimport 2026-10-21 00:27:52 UTC 
Vulnerability in Oracle Java SE (component: Compiler).  Supported versions that are affected are Oracle Java SE: 21.0.12.1, 25.0.4.1 and  27. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as  unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 4.8 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).
Comment 1 Jon Orris 2026-10-27 20:18:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9
  Red Hat Enterprise Linux 10

Via RHSA-2026:88347 https://access.redhat.com/errata/RHSA-2026:88347
Comment 2 Jon Orris 2026-10-29 12:25:57 UTC 
This issue has been addressed in the following products:

  Red Hat Build of OpenJDK 21.0.12.1

Via RHSA-2026:88350 https://access.redhat.com/errata/RHSA-2026:88350
Comment 3 Jon Orris 2026-10-29 12:26:47 UTC 
This issue has been addressed in the following products:

  Red Hat Build of OpenJDK 21.0.13

Via RHSA-2026:88351 https://access.redhat.com/errata/RHSA-2026:88351
Comment 4 Jon Orris 2026-10-29 14:10:29 UTC 
This issue has been addressed in the following products:

  Red Hat Build of OpenJDK 25.0.5

Via RHSA-2026:88348 https://access.redhat.com/errata/RHSA-2026:88348
Comment 5 Jon Orris 2026-10-29 14:11:04 UTC 
This issue has been addressed in the following products:

  Temurin Build of OpenJDK 25.0.4.1

Via RHSA-2026:90912 https://access.redhat.com/errata/RHSA-2026:90912
Comment 6 Jon Orris 2026-10-29 21:39:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support
  Red Hat Enterprise Linux 10

Via RHSA-2026:90504 https://access.redhat.com/errata/RHSA-2026:90504
Comment 7 Jon Orris 2026-10-30 00:16:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8
  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 9.6 Extended Update Support
  Red Hat Enterprise Linux 9

Via RHSA-2026:88349 https://access.redhat.com/errata/RHSA-2026:88349
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