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[cherry-pick v20251206] fix(security): bump Go to 1.25.10 and golang.org/x/net to v0.55.0#8552

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[cherry-pick v20251206] fix(security): bump Go to 1.25.10 and golang.org/x/net to v0.55.0#8552
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@djsly djsly commented May 22, 2026

Summary

Cherry-pick of #8551 to official/vv20251206.

Bumps the Go toolchain and golang.org/x/net to address upstream CVEs:

Vulnerability CVE Component Fixed by
net/mail DoS via crafted addresses CVE-2026-39820 net/mail (stdlib) Go 1.25.10
cmd/go pack subcommand directory traversal CVE-2026-39817 cmd/go (stdlib) Go 1.25.10
HTTP/2 + IPv6 host parsing fixes (various, see x/net release notes) golang.org/x/net v0.55.0

Why bump to Go 1.25 (and not a 1.24.x patch)

Go 1.24 reached EOL in February 2026 and does NOT receive security backports. go1.25.10 is the only release stream that contains these fixes.

golang.org/x/net v0.51.0+ also requires go 1.25.0 in its own go.mod, so the Go bump is required regardless.

Verification

  • go mod tidy succeeds for every module in the branch.
  • go build ./... clean across every module.
  • PR CI must pull go 1.25 runners.

Release plan

Once merged, two tags are pushed off the resulting commit:

  • v0.v20251206.<N+1> (AgentBaker module)
  • aks-node-controller/v0.v20251206.<N+1> (aks-node-controller submodule)

🤖 Generated with GitHub Copilot CLI

Backport of the patch from #8551 to official/v20251206 for IcM 796913379.
Fixes CVE-2026-39820 (net/mail DoS) and CVE-2026-39817 (cmd/go pack traversal).

Go 1.24 reached EOL Feb 2026 with no security backports — Go 1.25.10 is
the only release stream with these fixes. golang.org/x/net v0.51.0+
requires go 1.25.0 so the Go bump is forced.

IcM: 796913379

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview

This cherry-pick backports security updates to the official/v20251206 branch by raising the minimum Go toolchain version and refreshing key Go ecosystem dependencies to address the CVEs referenced in IcM 796913379.

Changes:

  • Bumps the go version across all Go modules in this branch to 1.25.10.
  • Updates golang.org/x/net to v0.55.0 (and corresponding transitive x/* libs) with refreshed go.sum entries.
  • Updates GitHub Actions workflows to use Go 1.25 for CI jobs.

Reviewed changes

Copilot reviewed 12 out of 15 changed files in this pull request and generated 8 comments.

Show a summary per file
File Description
go.mod Raises the root module’s Go version and bumps indirect golang.org/x/* dependencies.
go.sum Updates checksums for bumped golang.org/x/* dependency graph.
e2e/go.mod Raises e2e module Go version; bumps x/crypto and transitive x/* versions.
e2e/go.sum Updates checksums for the e2e module dependency graph.
aks-node-controller/go.mod Raises aks-node-controller module Go version; bumps x/sys.
aks-node-controller/go.sum Updates checksums for the aks-node-controller dependency graph.
hack/tools/go.mod Raises hack/tools module Go version.
vhdbuilder/lister/go.mod Raises vhdbuilder/lister module Go version (and removes the prior toolchain directive).
vhdbuilder/prefetch/go.mod Raises vhdbuilder/prefetch module Go version.
.github/workflows/check-coverage.yml Updates CI Go version to 1.25.
.github/workflows/go-test.yml Updates CI Go version to 1.25.
.github/workflows/golangci-lint.yml Updates CI Go version to 1.25.
.github/workflows/shellcheck.yml Updates CI Go version to 1.25.
.github/workflows/shellspec.yaml Updates CI Go version to 1.25.
.github/workflows/validate-components.yml Updates CI Go version to 1.25 for both jobs.

Comment thread go.mod
module github.com/Azure/agentbaker

go 1.23.0
go 1.25.10
- uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
- uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
- uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
- uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
Comment on lines 10 to +12
- uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
Comment on lines 46 to +49
- uses: actions/checkout@v6
- uses: actions/setup-go@v6
with:
go-version: '1.24'
go-version: '1.25'
@djsly djsly changed the title [cherry-pick v20251206] fix(security): bump Go to 1.25.10 and golang.org/x/net to v0.55.0 [IcM 796913379] [cherry-pick v20251206] fix(security): bump Go to 1.25.10 and golang.org/x/net to v0.55.0 May 22, 2026
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3 participants