OCPBUGS-96855: Bump golang.org/x/net to v0.55.0

[jkaurredhat]

Summary

This PR addresses CVE-2026-27136 by updating golang.org/x/net from v0.53.0 to v0.55.0, which fixes an XSS vulnerability caused by improper handling of duplicate HTML attributes in the HTML parser.

Changes

• Updated golang.org/x/net from v0.53.0 to v0.55.0
• Updated transitive dependencies: golang.org/x/sys, golang.org/x/term, golang.org/x/text
• Ran go mod tidy and go mod vendor
• Ran make update to regenerate manifests

CVE Details

CVE-2026-27136: Cross-Site Scripting via duplicate HTML attribute mishandling in golang.org/x/net/html

• Severity: High (CVSS score to be determined)
• Affected: golang.org/x/net < v0.55.0
• Impact: XSS vulnerability in HTML parser when processing malicious HTML with duplicate attributes
• Fixed in: golang.org/x/net v0.55.0

[openshift-ci-robot]

@jkaurredhat: This pull request references Jira Issue OCPBUGS-96855, which is invalid:

• expected Jira Issue OCPBUGS-96855 to depend on a bug targeting a version in 5.1.0 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:

Summary

This PR addresses CVE-2026-27136 by updating golang.org/x/net from v0.53.0 to v0.55.0, which fixes an XSS vulnerability caused by improper handling of duplicate HTML attributes in the HTML parser.

Changes

• Updated golang.org/x/net from v0.53.0 to v0.55.0
• Updated transitive dependencies: golang.org/x/sys, golang.org/x/term, golang.org/x/text
• Ran go mod tidy and go mod vendor
• Ran make update to regenerate manifests

CVE Details

CVE-2026-27136: Cross-Site Scripting via duplicate HTML attribute mishandling in golang.org/x/net/html

• Severity: High (CVSS score to be determined)
• Affected: golang.org/x/net < v0.55.0
• Impact: XSS vulnerability in HTML parser when processing malicious HTML with duplicate attributes
• Fixed in: golang.org/x/net v0.55.0

Risk Assessment

Risk Level: LOW ⚠️

Analysis confirmed that the local-storage-mustgather component:

• Does NOT import golang.org/x/net/html in source code (0 imports found)
• Does NOT call vulnerable functions (html.Parse, html.ParseFragment)
• Is a must-gather debugging tool that collects diagnostic data (does not parse HTML)
• Has vulnerable code in vendor/ as transitive dependency but never executes it

The update is applied for compliance with security scanning requirements, not due to exploitable risk.

Analysis Reference

Full CVE analysis posted to OCPBUGS-96855 with:

• govulncheck results (Package Results only - not Symbol Results)
• Vendor directory verification
• Manual source code analysis
• Risk classification methodology

Test Plan

• Go version preserved (go 1.25.0 unchanged)
• Dependencies updated successfully
• Vendor directory synchronized
• make update ran successfully
• Unit tests pass (CI)
• Integration tests pass (CI)

Related

• Jira: OCPBUGS-96855
• Go Vuln DB: GO-2026-5030

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jkaurredhat
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[jsafrane]

Please don't update release-5.0, update main instead.