[OCPBUGS-80846] fix: CVE-2026-33814: Patch HTTP/2 DoS vulnerability via golang.org/x/net sustaining fork in 4.21

[atewari-rh]

CVE-2026-33814: Patch HTTP/2 DoS vulnerability via golang.org/x/net sustaining fork

Apply CVE-2026-33814 fix (HTTP/2 frame size validation) to all Go modules
by replacing golang.org/x/net with the openshift-sustaining/net backport.

Affected modules:

• Root module (.)
• openshift/tools
• packaging
• test

Replace directive: github.com/openshift-sustaining/net@v0.50.0-sec.4
(backport of CVE fix for v0.50.0 base, Go 1.24.0)

The fix introduces s.Valid() check in http2/transport.go and http2/server.go
to validate SETTINGS frame max frame size, preventing DoS attacks.

All vendor directories regenerated and replace directives recorded in modules.txt.

Related JIRA:

• OCPBUGS-80846

[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-robot]

@atewari-rh: No Jira issue with key CVE-2026 exists in the tracker at https://redhat.atlassian.net.
Once a valid jira issue is referenced in the title of this pull request, request a refresh with /jira refresh.

Details

In response to this:

CVE-2026-33814: Patch HTTP/2 DoS vulnerability via golang.org/x/net sustaining fork

Apply CVE-2026-33814 fix (HTTP/2 frame size validation) to all Go modules
by replacing golang.org/x/net with the openshift-sustaining/net backport.

Affected modules:

• Root module (.)
• openshift/tools
• packaging
• test

Replace directive: github.com/openshift-sustaining/net@v0.50.0-sec.4
(backport of CVE fix for v0.50.0 base, Go 1.24.0)

The fix introduces s.Valid() check in http2/transport.go and http2/server.go
to validate SETTINGS frame max frame size, preventing DoS attacks.

All vendor directories regenerated and replace directives recorded in modules.txt.

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

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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

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Run ID: b0b50895-c6b5-4ac6-aab6-ef2b138320a9

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

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

[openshift-ci]

Hi @atewari-rh. Thanks for your PR.

I'm waiting for a openshift member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: atewari-rh
Once this PR has been reviewed and has the lgtm label, please assign radekmanak for approval. For more information see the Code Review Process.

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

Details

Needs approval from an approver in each of these files:

• OWNERS

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

[openshift-ci-robot]

@atewari-rh: No Jira issue with key CVE-2026 exists in the tracker at https://redhat.atlassian.net.
Once a valid jira issue is referenced in the title of this pull request, request a refresh with /jira refresh.

Details

In response to this:

CVE-2026-33814: Patch HTTP/2 DoS vulnerability via golang.org/x/net sustaining fork

Apply CVE-2026-33814 fix (HTTP/2 frame size validation) to all Go modules
by replacing golang.org/x/net with the openshift-sustaining/net backport.

Affected modules:

• Root module (.)
• openshift/tools
• packaging
• test

Replace directive: github.com/openshift-sustaining/net@v0.50.0-sec.4
(backport of CVE fix for v0.50.0 base, Go 1.24.0)

The fix introduces s.Valid() check in http2/transport.go and http2/server.go
to validate SETTINGS frame max frame size, preventing DoS attacks.

All vendor directories regenerated and replace directives recorded in modules.txt.

Related JIRA:

• OCPBUGS-80846

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.

[atewari-rh]

/ok-to-test

[openshift-ci]

@atewari-rh: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

Details

In response to this:

/ok-to-test

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.

[Pranavgarud06]

/ok-to-test

[openshift-ci]

@atewari-rh: The following test 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/verify-commits	b87d558	link	false	/test verify-commits

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.