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Advisory severityMedium5.3Red Hat Linux

Medium [CVE-2026-46917] Improve DTLS handshaking (Oracle CPU 2026-07)

This medium-severity Red Hat Linux advisory covers CVE-2026-46917 affecting OPENJDK ELS 11.0.32, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-46917 Source published Source updated

VulniPulse record published Record updated

CVE-2026-46917
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

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Summary

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). 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 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

A flaw was found in OpenJDK. The DTLS implementation is open to two different DoS attacks.

Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-400.

Affected products named by the advisory: OPENJDK ELS 11.0.32; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 16 more.

Affected versions
  • 11.0.31
  • 17.0.19
  • 21.0.11
  • 25.0.3
  • 26.0.1

Official advisory · high-confidence parse· fetched 18 days ago·verify at source

Fixed versions
  • java-11-openjdk-portable
  • java-11-openjdk-windows
  • java-21-openjdk-1:21.0.12.0.8-1.2.el10_2
  • java-25-openjdk-1:25.0.4.0.7-1.1.el10_2
  • java-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-2.el10_2
  • java-21-openjdk-1:21.0.12.0.8-1.1.el10_2
  • java-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-1.el10_0
  • java-17-openjdk-1:17.0.20.0.8-1.1.el8
  • java-21-openjdk-1:21.0.12.0.8-1.1.el8
  • java-17-openjdk-1:17.0.20.0.8-1.2.el9
  • java-21-openjdk-1:21.0.12.0.8-1.2.el9
  • java-25-openjdk-1:25.0.4.0.7-1.1.el9
  • java-17-openjdk-1:17.0.20.0.8-1.1.el9
  • java-21-openjdk-1:21.0.12.0.8-1.1.el9
  • java-11-openjdk-1:11.0.32.0.9-1.el7_9
  • java-11-openjdk-1:11.0.32.0.9-1.el8
  • java-11-openjdk-1:11.0.32.0.9-1.el9
  • java-25-openjdk-portable-main-25.0.4.0.7-2.0.2.hum1
  • java-21-openjdk-portable-main-21.0.12.0.8-0.1.hum1
  • java-21-openjdk-main-21.0.12.0.8-0.1.hum1
  • java-25-openjdk-main-25.0.4.0.7-1.1.1.hum1
  • RHSA-2026:42881
  • RHSA-2026:42882
  • RHSA-2026:42895
  • RHSA-2026:42899
  • RHSA-2026:52948
  • RHSA-2026:42887
  • RHSA-2026:42880
  • RHSA-2026:46808
  • RHSA-2026:50281
  • RHSA-2026:50525
  • RHSA-2026:52834

Official advisory · high-confidence parse· fetched 18 days ago·verify at source

Mitigation

Upgrade to a fixed release: java-11-openjdk-portable, java-11-openjdk-windows, java-21-openjdk-1:21.0.12.0.8-1.2.el10_2, java-25-openjdk-1:25.0.4.0.7-1.1.el10_2, java-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-2.el10_2, java-21-openjdk-1:21.0.12.0.8-1.1.el10_2. That is the remediation for this advisory.

The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.

Official advisory · high-confidence parse· fetched 18 days ago·verify at source

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