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Allowlist public Helm chart repositories (Datadog, HashiCorp, Teleport, Wiz, Fluent) #318

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Merged
v-robaiken merged 2 commits into from
Oct 14, 2026
Merged

Allowlist public Helm chart repositories (Datadog, HashiCorp, Teleport, Wiz, Fluent) #318

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010706d
Allowlist public Helm chart repositories (Datadog, HashiCorp, Telepor…
bkonicek-calm Oct 14, 2026
34f698e
Add sibling probes for new non-GitHub helm hosts
bkonicek-calm Oct 14, 2026
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11 changes: 11 additions & 0 deletions internal/handlers/egress_allowlist_defaults.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -635,6 +635,17 @@ ecosystem_default_domains:
# Project Calico (Tigera) chart repo, the documented `helm repo add` URL for
# tigera-operator and crd.projectcalico.org.v1 (tarballs are on github.com).
- docs.tigera.io
# Datadog's chart repo (CNAME to datadog.github.io); tarballs are on github.com.
- helm.datadoghq.com
# HashiCorp's chart repo (Consul, Vault, Boundary, ...); serves index and tarballs.
- helm.releases.hashicorp.com
# Teleport's chart repo (CloudFront); index and tarballs are on the same host.
- charts.releases.teleport.dev
# Wiz's chart repo; charts.wiz.io serves index.yaml, tarballs are on wiz-sec.github.io.
- charts.wiz.io
- wiz-sec.github.io
# Fluent's chart repo (GitHub Pages); tarballs are on github.com.
- fluent.github.io
# GitHub-hosted or per-job configured; covered by github_infra_domains / git.
# Note: additional per-job dependencies (e.g. pre_commit hooks that install
# from other ecosystems) are covered because the handler applies the union of
Expand Down
16 changes: 16 additions & 0 deletions internal/handlers/egress_allowlist_test.go
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Expand Up @@ -751,6 +751,12 @@ func TestEgressAllowlist_NewEntriesDoNotWidenBeyondExactHosts(t *testing.T) {
"https://evil.traefik.github.io/payload",
"https://evil.helm.traefik.io/payload",
"https://evil.docs.tigera.io/payload",
"https://evil.helm.datadoghq.com/payload",
"https://evil.helm.releases.hashicorp.com/payload",
"https://evil.charts.releases.teleport.dev/payload",
"https://evil.charts.wiz.io/payload",
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"https://evil.wiz-sec.github.io/payload",
"https://evil.fluent.github.io/payload",
}

// Sibling hosts: names sharing a parent with an added entry. These pin the
Expand All @@ -769,6 +775,10 @@ func TestEgressAllowlist_NewEntriesDoNotWidenBeyondExactHosts(t *testing.T) {
"https://attacker.external-secrets.io/payload",
"https://attacker.traefik.io/payload",
"https://attacker.tigera.io/payload",
"https://attacker.datadoghq.com/payload",
"https://attacker.releases.hashicorp.com/payload",
"https://attacker.releases.teleport.dev/payload",
"https://attacker.wiz.io/payload",
// Cloudsmith is multi-tenant with the tenant in the URL path, and the
// allowlist authorizes the hostname only. Neither the tenant subdomain
// form nor the shared download hosts may be globally allowed.
Expand Down Expand Up @@ -955,6 +965,12 @@ func TestEgressAllowlist_AddedMissingDomainsAllowed(t *testing.T) {
"https://traefik.github.io/charts/traefik/traefik-41.6.1.tgz",
"https://helm.traefik.io/traefik/index.yaml",
"https://docs.tigera.io/calico/charts/index.yaml",
"https://helm.datadoghq.com/index.yaml",
"https://helm.releases.hashicorp.com/index.yaml",
"https://charts.releases.teleport.dev/index.yaml",
"https://charts.wiz.io/index.yaml",
"https://wiz-sec.github.io/charts/wiz-kubernetes-integration-0.2.0.tgz",
"https://fluent.github.io/helm-charts/index.yaml",
"https://cocoapods.org/pods/AFNetworking",
} {
assert.Nil(t, egressResult(t, h, allowed), "added host should be allowed: "+allowed)
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