Detections
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RHEL 7 : java-1.8.0-openjdk (RHSA-2026:0931)
high Nessus Plugin ID 296627
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Synopsis
The remote Red Hat host is missing one or more security updates for java-1.8.0-openjdk.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0931 advisory.The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.
Security Fix(es):
* JDK: Improve JMX connections (CVE-2026-21925)
* JDK: Improve HttpServer Request handling (CVE-2026-21933)
* JDK: Enhance Certificate Checking (CVE-2026-21945)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL java-1.8.0-openjdk package based on the guidance in RHSA-2026:0931.See Also
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2429924
https://bugzilla.redhat.com/show_bug.cgi?id=2429926
https://bugzilla.redhat.com/show_bug.cgi?id=2429927
Plugin Details
Severity: High
ID: 296627
File Name: redhat-RHSA-2026-0931.nasl
Version: 1.1
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/26/2026
Updated: 1/26/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2026-21933
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2026-21945
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-accessibility, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-demo, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-devel, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-headless, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-javadoc, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-javadoc-zip, p-cpe:/a:redhat:enterprise_linux:java-1.8.0-openjdk-src, cpe:/o:redhat:rhel_els:7
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 1/26/2026
Vulnerability Publication Date: 1/20/2026