CM-1216: Apply sustaining CVE backport for golang.org/x/net

[sujkini]

Summary

• Applies sustaining CVE backport: replace golang.org/x/net => openshift-sustaining/net@v0.50.0-sec.2
• Fixes reachable CVE-2026-39821 (Critical, CVSS 9.6) in the HTTP/2 transport layer used for Kubernetes API communication
• go mod tidy pulled in transitive golang.org/x/ dependency updates to satisfy minimum version requirements of the new x/net

CVEs Fixed

CVE	Severity	Package	Reachable
CVE-2026-39821	Critical (9.6)	golang.org/x/net/idna	Yes — via HTTP/2 transport
CVE-2026-25681	Medium	golang.org/x/net/html	No — same module, fixed by same replace
CVE-2026-27136	Medium	golang.org/x/net/html	No — same module, fixed by same replace

Verification

• go build ./... ✅
• govulncheck ./... confirms x/net vulnerabilities resolved ✅

Jira: CM-1216

[openshift-ci-robot]

@sujkini: This pull request references CM-1216 which is a valid jira issue.

Details

In response to this:

Summary

• Applies sustaining CVE backport: replace golang.org/x/net => openshift-sustaining/net@v0.50.0-sec.2
• Fixes reachable CVE-2026-39821 (Critical, CVSS 9.6) in the HTTP/2 transport layer used for Kubernetes API communication
• go mod tidy pulled in transitive golang.org/x/ dependency updates to satisfy minimum version requirements of the new x/net

CVEs Fixed

CVE	Severity	Package	Reachable
CVE-2026-39821	Critical (9.6)	golang.org/x/net/idna	Yes — via HTTP/2 transport
CVE-2026-25681	Medium	golang.org/x/net/html	No — same module, fixed by same replace
CVE-2026-27136	Medium	golang.org/x/net/html	No — same module, fixed by same replace

Verification

• go build ./... ✅
• govulncheck ./... confirms x/net vulnerabilities resolved ✅

Jira: CM-1216

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[openshift-ci]

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[openshift-ci]

@sujkini: all tests passed!

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[bharath-b-rh]

/lgtm

[bharath-b-rh]

adding other required labels based on the CI checks
/label docs-approved
/label qe-approved
/label px-approved

[bharath-b-rh]

/cancel lgtm

[bharath-b-rh]

/lgtm cancel

[bharath-b-rh]

/hold

for @mytreya-rh / @arun717 reviews.

[arun717]

The go.mod changes looks good.
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: arun717, sujkini
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