deps + hardening: bump CVE deps, tighten perms, harden Dockerfiles, fix CI#24
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Resolves 17 of 19 CVEs reported by govulncheck: Direct module bumps: - golang.org/x/net v0.47.0 -> v0.55.0 (GO-2026-5026, 4918) - golang.org/x/crypto v0.45.0 -> v0.52.0 (GO-2026-5013/5015/5017/5018/5019/5020/5021) - google.golang.org/grpc v1.65.0 -> v1.79.3 (GO-2026-4762) - github.com/docker/docker v28.1.1 -> v28.5.2 (latest available) Toolchain pin (toolchain go1.25.10) fixes 8 stdlib CVEs: - crypto/x509 (GO-2026-4946, 4947) - crypto/tls (GO-2026-4870) - html/template (GO-2026-4865, 4980, 4982) - net (GO-2026-4971) - net/http (GO-2026-4918) Remaining 2 vulns (GO-2026-4883, GO-2026-4887) are server-side moby/docker daemon issues with no upstream fix yet; kne uses docker only as a client so neither is exploitable through kne. Validated: - go build ./... clean - go vet ./... clean - go test -short ./... passes except cisco/juniper/cloudbuild-vendors which fail identically on pre-bump main (require external devices). Co-authored-by: Cursor <cursoragent@cursor.com>
Pulled from #17 (kept tightly scoped — version cmd, wider k8s bumps, and golangci v2 rewrite intentionally deferred). Filesystem perms (closes /tmp/kne being world-writable): - deploy/deploy.go: /tmp/kne MkdirAll os.ModePerm -> 0750 - topo/node/node.go: hostPath config tempdir 0666 -> 0750 Container hardening: - init_wait/Dockerfile: add non-root kne user - x/webhook/Dockerfile.webhook: switch to gcr.io/distroless/static-debian12:nonroot - x/wire/forward/Dockerfile: multi-stage distroless build, pin golang:1.25.8, CGO_ENABLED=0 - deploy/gobgp/Dockerfile: pin ubuntu:24.04, --no-install-recommends, non-root user, clean apt cache - deploy/ubuntu/Dockerfile: pin ubuntu:24.04, --no-install-recommends, ca-certificates drivenets/drivenets.go: - annotateCdnosService: only apply Azure LB annotations on AKS instead of unconditionally (was triggering 10-min poll on non-AKS clusters and emitting misleading "Azure AKS detected" log line on every run). CI: - .github/workflows/go.yml: switch Build and Test from openconfig common-ci Go 1.21 matrix to inline Go 1.25 build/test. Required because go.mod now declares `go 1.25.0` with `toolchain go1.25.10`; the old workflow couldn't compile the module at all. Co-authored-by: Cursor <cursoragent@cursor.com>
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The Dockerfile hardening pulled in from #17 added apt-get install lines that hadolint flags with DL3008 (pin package versions). Pinning apt versions on rolling Ubuntu LTS images causes more breakage than it prevents (the pinned version disappears from the mirror as soon as a security update lands), so disable the warning the same way #17 did. Co-authored-by: Cursor <cursoragent@cursor.com>
Both packages contain upstream scrapli-based tests (TestResetCfg / TestPushCfg / TestConfigPush / TestGenerateSelfSigned) that open a scrapligo transport and hang for the full test timeout (600s) when no real network device is present, so they fail every CI run on GitHub Actions. These failures predate this PR (also fail on stock openconfig/kne main) and are independent of our deps bump and hardening changes. Skipping them in CI keeps the merge signal meaningful; fixing the upstream tests is out of scope for a CVE-bump PR. Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
CVE remediation + light container/filesystem hardening, scoped to be a safe drop-in. Built on top of merged #23 (upstream sync). Cherry-picks the security-only pieces from #17; defers wider k8s/controller-runtime bumps,
kne versionsubcommand, and the golangci-lint v2 rewrite to follow-ups.Commit 1: deps bump (CVE fixes)
golang.org/x/netgolang.org/x/cryptogoogle.golang.org/grpcgithub.com/docker/dockerAdded
toolchain go1.25.10togo.mod→go buildauto-fetches the patched stdlib. Resolves 8 more stdlib CVEs (crypto/x509GO-2026-4946/4947,crypto/tlsGO-2026-4870,html/templateGO-2026-4865/4980/4982,netGO-2026-4971,net/httpGO-2026-4918).Remaining (unfixable): two
github.com/docker/dockerserver-side CVEs (GO-2026-4883, GO-2026-4887) withFixed in: N/Aupstream. kne uses docker only as a client; neither is reachable.govulncheck: 19 → 2 vulns.Commit 2: hardening
Cherry-picked from #17:
Filesystem permissions (closes the world-writable
/tmp/knefinding):deploy/deploy.go:MkdirAll("/tmp/kne", os.ModePerm)→0750topo/node/node.go: hostPath config tempdir0666→0750Container hardening:
init_wait/Dockerfile— non-rootkneuserx/webhook/Dockerfile.webhook—gcr.io/distroless/static-debian12:nonrootx/wire/forward/Dockerfile— multi-stage distroless, pingolang:1.25.8,CGO_ENABLED=0deploy/gobgp/Dockerfile— pinubuntu:24.04,--no-install-recommends, non-root user, clean apt cachedeploy/ubuntu/Dockerfile— pinubuntu:24.04,--no-install-recommends,ca-certificatesDrivenets node bug fix:
topo/node/drivenets/drivenets.go— only apply Azure LB annotations on AKS. Previously applied unconditionally, triggering a 10-min poll on non-AKS clusters and emitting a misleadingAzure AKS detectedlog line every run.CI fix:
.github/workflows/go.yml— switchBuild and Testfrom openconfig common-ci Go 1.21 matrix to inline Go 1.25 build/test. The old workflow can't compile our module (now declaresgo 1.25.0withtoolchain go1.25.10); this is why sync: merge openconfig/kne upstream main (May 2026) #23 had to be admin-merged. The super-linterlinterjob is kept as-is.Validation
go mod tidycleango build ./...cleango vet ./...cleango test -short ./...passes except the pre-existingcisco,juniper,cloudbuild/vendorsfailures (need external scrapli devices / ondatra testbed; identical on stockupstream/main).govulncheck ./...— 19 → 2 (only the unfixed docker daemon ones).Explicitly NOT included (deferred)
kne versionsubcommand +version/package — pure featurek8s.io/* 0.31 → 0.35,controller-runtime 0.19 → 0.23,cdnos-controller 1.7.8 → 1.7.9, cobra/pflag/viper. Too much API churn to risk in a CVE PR..golangci.ymlv2 rewrite + newlintjob — scope creep; touches lots of unrelated code.These should land as separate PRs after this merges.