OCPBUGS-99029: Fix CVE-2026-49978 - bump DOMPurify to >= 3.4.7

[germanparente]

Summary

• Bumps DOMPurify to >= 3.4.11 (resolves to 3.4.12) via yarn resolutions
• Fixes CVE-2026-49978: DOMPurify IN_PLACE sanitization bypass via Shadow Root inside <template>.content (XSS)
• Fix version is 3.4.7; previous version was 3.2.7

Test plan

• Verify DOMPurify version in yarn.lock is >= 3.4.7
• Verify no regressions in console UI

[openshift-merge-bot]

Pipeline controller notification
This repo is configured to use the pipeline controller. Second-stage tests will be triggered either automatically or after lgtm label is added, depending on the repository configuration. The pipeline controller will automatically detect which contexts are required and will utilize /test Prow commands to trigger the second stage.

For optional jobs, comment /test ? to see a list of all defined jobs. To trigger manually all jobs from second stage use /pipeline required command.

This repository is configured in: LGTM mode

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: germanparente
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[openshift-ci-robot]

@germanparente: This pull request references Jira Issue OCPBUGS-99029, which is invalid:

• expected dependent Jira Issue OCPBUGS-99040 to be in one of the following states: MODIFIED, ON_QA, VERIFIED, but it is POST instead

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

Details

In response to this:

Summary

• Bumps DOMPurify to >= 3.4.11 (resolves to 3.4.12) via yarn resolutions
• Fixes CVE-2026-49978: DOMPurify IN_PLACE sanitization bypass via Shadow Root inside <template>.content (XSS)
• Fix version is 3.4.7; previous version was 3.2.7

Test plan

• Verify DOMPurify version in yarn.lock is >= 3.4.7
• Verify no regressions in console UI

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[openshift-ci]

@germanparente: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/frontend	cc70950	link	true	/test frontend
ci/prow/backend	cc70950	link	true	/test backend

Full PR test history. Your PR dashboard.

Details

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