OCPBUGS-80804: Bump google.golang.org/grpc to v1.79.3 to fix CVE-2026-33186

[amitesh1201]

Summary

• CVE: CVE-2026-33186 — gRPC-Go authorization bypass via malformed :path pseudo-header (CVSS 9.1)
• Component: cloud-provider-gcp (Cloud Controller Manager)
• Branch: release-4.21
• Package: google.golang.org/grpc v1.72.1 → v1.79.3
• Risk Level: LOW — indirect dependency, component does not import or use grpc directly

Changes

• Dependency version bump in go.mod and providers/go.mod
• Vendor directory updated via openshift-hack/update-vendor.sh

Test Plan

• openshift-hack/verify-vendor.sh passes
• openshift-hack/test-unit.sh passes

[openshift-ci-robot]

@amitesh1201: This pull request references Jira Issue OCPBUGS-80804, which is invalid:

• release note text must be set and not match the template OR release note type must be set to "Release Note Not Required". For more information you can reference the OpenShift Bug Process.
• expected Jira Issue OCPBUGS-80804 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:

Summary

• CVE: CVE-2026-33186 — gRPC-Go authorization bypass via malformed :path pseudo-header (CVSS 9.1)
• Component: cloud-provider-gcp (Cloud Controller Manager)
• Branch: release-4.21
• Package: google.golang.org/grpc v1.72.1 → v1.79.3
• Risk Level: LOW — indirect dependency, component does not import or use grpc directly

Changes

• Dependency version bump in go.mod and providers/go.mod
• Vendor directory updated via openshift-hack/update-vendor.sh

Test Plan

• openshift-hack/verify-vendor.sh passes
• openshift-hack/test-unit.sh passes

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[openshift-ci]

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[amitesh1201]

/retest-required

[openshift-ci]

@amitesh1201: all tests passed!

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