Issued:

2025-09-23

Updated:

2025-09-23

RHSA-2025:16455 - Important: Red Hat Product OCP Tools 4.18 Openshift Jenkins security update

Synopsis

Important: Red Hat Product OCP Tools 4.18 Openshift Jenkins security update

Type/Severity

Security Advisory Important

Topic

An update for Openshift Jenkins is now available for Red Hat Product OCP Tools 4.18. Red Hat Product Security has rated this update as having a security impact of important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron.

Security Fix(es):

• jenkins: HTTP/2 (including DNS over HTTPS) contains a design flaw and is vulnerable to "MadeYouReset" DoS attack through HTTP/2 control frames (CVE-2025-5115)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Affected Products

Updated Packages

• jenkins-2.516.3.1758260563-3.el9.noarch.rpm
• jenkins-2.516.3.1758260563-3.el9.src.rpm
• jenkins-2-plugins-4.18.1758260849-1.el9.src.rpm
• jenkins-2-plugins-4.18.1758260849-1.el9.noarch.rpm

Fixes

• This content is not included.BZ - 2373310

CVEs

• CVE-2025-5115

References

• https://access.redhat.com/security/updates/classification/#important

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.