[release-4.13] OCPBUGS-102309: CVE-2026-33814: replace golang.org/x/net with openshift-sustaining fork

[mariocr73]

golang.org/x/net's real fix for CVE-2026-33814 (GO-2026-4918, malformed SETTINGS_MAX_FRAME_SIZE causing an infinite loop in golang.org/x/net/http2) ships in v0.53.0, which requires go>=1.25. This branch's go.mod declares go 1.19, so a direct module bump is not buildable here without also bumping the builder toolchain.

Uses replace golang.org/x/net => github.com/openshift-sustaining/net v0.35.0-sec.3 (the sustaining team's own downstream fork) which backports only the CVE-2026-33814 fix without requiring a toolchain bump. Same mechanism already used by other components in this CVE (e.g. openshift/csi-operator, openshift/azure-disk-csi-driver-operator, openshift/route-controller-manager). This branch already pinned golang.org/x/net via a direct replace; that replace was repointed to the fork tag instead of adding a second one (Go only allows one replace per module path).

Verified: go build ./... and go vet ./... pass with this branch's real toolchain; govulncheck no longer reports GO-2026-4918 for this module.

[openshift-merge-bot]

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[openshift-ci-robot]

@mariocr73: This pull request references Jira Issue OCPBUGS-102309, which is invalid:

• expected dependent Jira Issue OCPBUGS-102514 to be in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but it is ASSIGNED 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:

golang.org/x/net's real fix for CVE-2026-33814 (GO-2026-4918, malformed SETTINGS_MAX_FRAME_SIZE causing an infinite loop in golang.org/x/net/http2) ships in v0.53.0, which requires go>=1.25. This branch's go.mod declares go 1.19, so a direct module bump is not buildable here without also bumping the builder toolchain.

Uses replace golang.org/x/net => github.com/openshift-sustaining/net v0.35.0-sec.3 (the sustaining team's own downstream fork) which backports only the CVE-2026-33814 fix without requiring a toolchain bump. Same mechanism already used by other components in this CVE (e.g. openshift/csi-operator, openshift/azure-disk-csi-driver-operator, openshift/route-controller-manager). This branch already pinned golang.org/x/net via a direct replace; that replace was repointed to the fork tag instead of adding a second one (Go only allows one replace per module path).

Verified: go build ./... and go vet ./... pass with this branch's real toolchain; govulncheck no longer reports GO-2026-4918 for this module.

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mariocr73
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[openshift-ci]

@mariocr73: all tests passed!

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