security: remediate Trivy HIGH/CRITICAL findings - #24
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Bump vulnerable Go dependencies in go/authn to their fixed versions, resolving the open Trivy HIGH/CRITICAL (and related MEDIUM) advisories on go/authn/go.mod: - golang.org/x/crypto -> v0.53.0 (>= fixed 0.52.0): CVE-2026-42508, CVE-2026-46595, CVE-2026-46597, CVE-2026-39828..39835, CVE-2026-39827, CVE-2026-39833, CVE-2026-39834, CVE-2026-46598, GO-2026-5932 - golang.org/x/net -> v0.56.0: CVE-2026-46600 - golang.org/x/text -> v0.39.0: CVE-2026-56852 - google.golang.org/grpc -> v1.82.1: GHSA-hrxh-6v49-42gf - github.com/Azure/go-ntlmssp -> v0.1.1: CVE-2026-32952 go build ./..., go vet ./... and the unit tests all pass green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LJsLqtryCgWwEt8FnPE1se
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Summary
Remediates the tractable open Trivy HIGH/CRITICAL (and related MEDIUM) code-scanning findings on
go/authn/go.modby bumping the flagged vulnerable Go dependencies to their fixed versions. No source changes — dependency bumps only.Fixed (VULN — Go dependency bumps)
golang.org/x/cryptogolang.org/x/netgolang.org/x/textgoogle.golang.org/grpcgithub.com/Azure/go-ntlmsspgo get+go mod tidyalso pulled forward the transitivegolang.org/x/{mod,sync,sys,term,tools}as required by thex/netupgrade.x/cryptois now a transitive-only requirement (folded out of the explicitrequireblock bygo mod tidy) but is pinned at v0.53.0 in the build list and go.sum.Verification
go build ./...— passgo vet ./...— passgo test ./internal/... ./apis/...— passgo mod verify— all modules verifiedDeferred (not fixed in this PR)
manifests/deploy.local.yaml) — Rolesecrets-adminmanages secrets. Functionally required: authn writes user kubeconfigs as Secrets via the API (documented in the manifest). RBAC over-grant needing human judgment.testdata/ldap-forumsys.yaml) — ClusterRoleBinding to admin role, intestdata/(non-production test fixture).manifests/deploy.local.yaml) — resource requests/limits + image tag on the localkinddev manifest (LOW/MED).authn:latest+imagePullPolicy: Neveris the intentional local-kind pattern; the shipped Helm chart (the production artifact) already sourcessecurityContext/resourcesfrom values and is Trivy-clean. Adding resource pins only to the dev manifest would drift from the chart's deliberateresources: {}choice.Dockerfile) — "add HEALTHCHECK" (LOW). The runtime stage isgcr.io/distroless/static:nonroot(no shell/curl), so a HEALTHCHECK instruction isn't meaningfully executable; liveness/readiness is handled at the k8s layer.🤖 Generated with Claude Code