OCPBUGS-103524: Replace golang.org/x/net with sustaining fork for CVE-2026-33814 in 4.18

[katekeiroz-dev]

Summary

This PR addresses CVE-2026-33814 by replacing golang.org/x/net with the OpenShift sustaining fork that contains the security fix. The upstream patched version requires a Go upgrade that release-4.18 cannot take.

Changes

• Added replace directive: golang.org/x/net => github.com/openshift-sustaining/net v0.35.0-sec.3
• Updated go.mod and go.sum
• Vendored the patched dependency

Why Replace Directive?

golang.org/x/net v0.53.0 requires Go 1.25.0+, but release-4.18 must keep Go 1.22.5. There is no Go 1.22-specific sustaining tag. v0.35.0-sec.3 backports the CVE-2026-33814 Setting.Valid() check on Go 1.18, which is compatible with 1.22.

CVE Details

CVE-2026-33814 / GO-2026-4918: HTTP/2 client infinite loop DoS when a peer sends SETTINGS_MAX_FRAME_SIZE=0.

Upstream References

• UPSTREAM status: <carry>
• Sustaining fork: https://github.com/openshift-sustaining/net/releases/tag/v0.35.0-sec.3

Test Plan

• Go version unchanged (go 1.22.5)
• Vendored processSettingsNoWrite calls s.Valid()
• Unit tests / CI
• QE verification

Related

• Jira: OCPBUGS-103524
• Go Vuln DB: GO-2026-4918

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[openshift-ci-robot]

@katekeiroz-dev: This pull request references Jira Issue OCPBUGS-103524, which is invalid:

• expected dependent Jira Issue OCPBUGS-103752 to be in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but it is New 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:

Summary

This PR addresses CVE-2026-33814 by replacing golang.org/x/net with the OpenShift sustaining fork that contains the security fix. The upstream patched version requires a Go upgrade that release-4.18 cannot take.

Changes

• Added replace directive: golang.org/x/net => github.com/openshift-sustaining/net v0.35.0-sec.3
• Updated go.mod and go.sum
• Vendored the patched dependency

Why Replace Directive?

golang.org/x/net v0.53.0 requires Go 1.25.0+, but release-4.18 must keep Go 1.22.5. There is no Go 1.22-specific sustaining tag. v0.35.0-sec.3 backports the CVE-2026-33814 Setting.Valid() check on Go 1.18, which is compatible with 1.22.

CVE Details

CVE-2026-33814 / GO-2026-4918: HTTP/2 client infinite loop DoS when a peer sends SETTINGS_MAX_FRAME_SIZE=0.

Upstream References

• UPSTREAM status: <carry>
• Sustaining fork: https://github.com/openshift-sustaining/net/releases/tag/v0.35.0-sec.3

Test Plan

• Go version unchanged (go 1.22.5)
• Vendored processSettingsNoWrite calls s.Valid()
• Unit tests / CI
• QE verification

Related

• Jira: OCPBUGS-103524
• Go Vuln DB: GO-2026-4918

Made with Cursor

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[openshift-merge-bot]

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[katekeiroz-dev]

/ok-to-test

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