OCPBUGS-101991: CVE-2026-33814 openshift4/ose-monitoring-plugin-rhel9: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame [openshift-4.22]

[tonyxrmdavidson]

Remediates CVE-2026-33814, a denial-of-service vulnerability in Go's HTTP/2 implementation (golang.org/x/net) where a malformed SETTINGS_MAX_FRAME_SIZE frame can be used to crash or hang a server.

Changes

• Added a replace directive in go.mod pointing golang.org/x/net to the patched fork github.com/openshift-sustaining/net@v0.50.0-sec.4.
• Bumped golang.org/x/net from v0.34.0 → v0.49.0 (via the replace) along with transitively affected golang.org/x/sys, golang.org/x/term, and golang.org/x/text to satisfy go mod tidy.
• Updated go.sum accordingly.

Testing

• make build-backend — builds successfully with go 1.24.0.
• make test-backend — all tests in ./pkg/... pass.

[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]

@tonyxrmdavidson: This pull request references Jira Issue OCPBUGS-101991, which is invalid:

• expected Jira Issue OCPBUGS-101991 to depend on a bug targeting a version in 5.0.0 and in one of the following states: MODIFIED, ON_QA, VERIFIED, 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:

Remediates CVE-2026-33814, a denial-of-service vulnerability in Go's HTTP/2 implementation (golang.org/x/net) where a malformed SETTINGS_MAX_FRAME_SIZE frame can be used to crash or hang a server.

Changes

• Added a replace directive in go.mod pointing golang.org/x/net to the patched fork github.com/openshift-sustaining/net@v0.50.0-sec.4.
• Bumped golang.org/x/net from v0.34.0 → v0.49.0 (via the replace) along with transitively affected golang.org/x/sys, golang.org/x/term, and golang.org/x/text to satisfy go mod tidy.
• Updated go.sum accordingly.

Testing

• make build-backend — builds successfully with go 1.24.0.
• make test-backend — all tests in ./pkg/... pass.

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.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: tonyxrmdavidson
Once this PR has been reviewed and has the lgtm label, please assign jan--f 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]

@tonyxrmdavidson: 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.

[jgbernalp]

@tonyxrmdavidson not sure this is the right approach to fix this, I think it will be better to upgrade the go version in go.mod to 1.26.6 which patches a series of other CVEs. For this, we can check with the ART team, which productizes this plugin, to update to an appropriate go base image for the version mentioned before. Also upgrade to golang.org/x/net v0.56.0 rather than adding a replace directive that will be harder to maintain. WDYT?