OCPBUGS-79460: immutable bump: fix for CVE-2026-29063 [4.21]

[rhdmalone]

Fix CVE-2026-29063 (Prototype Pollution in the immutable npm package) by updating the dependency to patched versions.

Changes:

Bumped immutable in dependencies from 3.x to ^3.8.3 (the minimum patched version for the 3.x range)
Added overrides.sass.immutable: ^5.1.5 to force sass's transitive dependency on immutable to the patched 5.x version
Updated package-lock.json accordingly — both immutable@3.8.3 (direct) and immutable@5.1.5 (scoped under node_modules/sass) are now at their respective patched versions
CVE details:

CVE-2026-29063 — Prototype Pollution via mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), Map.toObject()
Affected: < 3.8.3, >= 4.0.0-rc.1 < 4.3.8, >= 5.0.0-beta.1 < 5.1.5
Fixed: 3.8.3, 4.3.8, 5.1.5

[openshift-ci-robot]

@rhdmalone: This pull request references Jira Issue OCPBUGS-79460, which is invalid:

• expected Jira Issue OCPBUGS-79460 to depend on a bug targeting a version in 4.22.0 and in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but no dependents were found

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:

Fix CVE-2026-29063 (Prototype Pollution in the immutable npm package) by updating the dependency to patched versions.

Changes:

Bumped immutable in dependencies from 3.x to ^3.8.3 (the minimum patched version for the 3.x range)
Added overrides.sass.immutable: ^5.1.5 to force sass's transitive dependency on immutable to the patched 5.x version
Updated package-lock.json accordingly — both immutable@3.8.3 (direct) and immutable@5.1.5 (scoped under node_modules/sass) are now at their respective patched versions
CVE details:

CVE-2026-29063 — Prototype Pollution via mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), Map.toObject()
Affected: < 3.8.3, >= 4.0.0-rc.1 < 4.3.8, >= 5.0.0-beta.1 < 5.1.5
Fixed: 3.8.3, 4.3.8, 5.1.5

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Repository: openshift/coderabbit/.coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: 61c34f43-8b04-465f-8372-f06a0d88dd8a

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

Tip

💬 Introducing Slack Agent: The best way for teams to turn conversations into code.

Slack Agent is built on CodeRabbit's deep understanding of your code, so your team can collaborate across the entire SDLC without losing context.

• Generate code and open pull requests
• Plan features and break down work
• Investigate incidents and troubleshoot customer tickets together
• Automate recurring tasks and respond to alerts with triggers
• Summarize progress and report instantly

Built for teams:

• Shared memory across your entire org—no repeating context
• Per-thread sandboxes to safely plan and execute work
• Governance built-in—scoped access, auditability, and budget controls

One agent for your entire SDLC. Right inside Slack.

👉 Get started

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[shannon]

/label jira/skip-dependent-bug-check

The immutable package is not present in 4.22 so a 4.22 tracker is not required.

[openshift-ci-robot]

@rhdmalone: This pull request references Jira Issue OCPBUGS-79460, which is valid. The bug has been moved to the POST state.

4 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target version (4.21.z) matches configured target version for branch (4.21.z)
• bug is in the state ASSIGNED, which is one of the valid states (NEW, ASSIGNED, POST)
• release note text is set and does not match the template

No GitHub users were found matching the public email listed for the QA contact in Jira (ocp-sustaining-admins@redhat.com), skipping review request.

Details

In response to this:

Fix CVE-2026-29063 (Prototype Pollution in the immutable npm package) by updating the dependency to patched versions.

Changes:

Bumped immutable in dependencies from 3.x to ^3.8.3 (the minimum patched version for the 3.x range)
Added overrides.sass.immutable: ^5.1.5 to force sass's transitive dependency on immutable to the patched 5.x version
Updated package-lock.json accordingly — both immutable@3.8.3 (direct) and immutable@5.1.5 (scoped under node_modules/sass) are now at their respective patched versions
CVE details:

CVE-2026-29063 — Prototype Pollution via mergeDeep(), mergeDeepWith(), merge(), Map.toJS(), Map.toObject()
Affected: < 3.8.3, >= 4.0.0-rc.1 < 4.3.8, >= 5.0.0-beta.1 < 5.1.5
Fixed: 3.8.3, 4.3.8, 5.1.5

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[rhdmalone]

/test images

[rhdmalone]

/test e2e-aws-ovn

[openshift-ci]

@rhdmalone: all tests passed!

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.

[PeterYurkovich]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: PeterYurkovich, rhdmalone

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [PeterYurkovich]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment