Bug 2557117 (CVE-2026-91451)

Summary: CVE-2026-91451 openjdk: Enhance HTTP server parsing (Oracle CPU 2026-10)
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: ahughes, fferrari, khosford, mtorre, pjindal, rhel-process-autobot, tfitzsim, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in the Networking component of OpenJDK. This vulnerability allows an unauthenticated remote attacker to cause unauthorized data modification by sending crafted input to exposed Application Programming Interfaces (APIs), such as through web services. Successful exploitation enables an attacker to insert, update, or delete data accessible to the application.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-10-20 23:12:23 UTC
Vulnerability in Oracle Java SE (component: Networking).  Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1; Oracle GraalVM for JDK: 17.0.20.1 and  21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable 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. 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 5.3 (Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

Comment 1 Jon Orris 2026-10-27 16:29:37 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8
  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:88352 https://access.redhat.com/errata/RHSA-2026:88352

Comment 2 Jon Orris 2026-10-27 19:52:54 UTC
This issue has been addressed in the following products:

  Red Hat Build of OpenJDK 17.0.20.1

Via RHSA-2026:89916 https://access.redhat.com/errata/RHSA-2026:89916

Comment 3 Jon Orris 2026-10-27 19:54:16 UTC
This issue has been addressed in the following products:

  Red Hat Build of OpenJDK 17.0.21

Via RHSA-2026:88353 https://access.redhat.com/errata/RHSA-2026:88353

Comment 4 Jon Orris 2026-10-27 20:18:29 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 5 Jon Orris 2026-10-29 12:25:28 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 6 Jon Orris 2026-10-29 12:26:23 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 7 Jon Orris 2026-10-29 14:10:06 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 8 Jon Orris 2026-10-29 14:10:52 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 9 Jon Orris 2026-10-29 21:38:56 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 10 Jon Orris 2026-10-30 00:16:24 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

Comment 11 Jon Orris 2026-10-31 22:38:04 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
  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-2026:90500 https://access.redhat.com/errata/RHSA-2026:90500