ztunnel

Chart · Coordination & mesh · standard · v0.0.5

digest pinnedcosign signedSPDX SBOMSLSA provenanceamd64 · arm64Rebuilt 2026-10-22

Istio's ambient-mode node proxy (ztunnel, Rust), built from source from the istio/ztunnel tags on the same three lines as istiod, with aws-lc TLS and jemalloc as upstream builds it, over Wolfi iptables.

Version

0.0.5 · latest 0.0.4 0.0.3

The latest line lives at the base page; older lines have their own page so you can pin and verify exactly that version. Only the most recent releases are listed — an older chart pins an older image digest.

Deployed image digest

sha256:a0ff30bca99627f5303192c87ad70cf81fc9426b06dc42f654ff8ae360b0bf7d

Chart OCI version

oci://ghcr.io/quenchworks/charts/ztunnel:0.0.5

The chart pins its image by this signed digest, so you never track it yourself. Signatures, SBOM, and provenance attach to the same digest.

Signed

cosign keyless

SBOM

SPDX, on image

Provenance

SLSA build

Architectures

amd64, arm64

Runs as

nonroot (uid 1001)

Root filesystem

read-only

Image size

10.8 MB

Security report (Trivy)

C· 73/1004 fixable · rebuild clears them

Vulnerability detail

ztunnel 1.30.7 · 4 CVE

CVE	Severity	Package	Installed	Fixed in	Title
GHSA-c8m5-c952-6cm4	MEDIUM	rustls	0.23.45	0.23.46, 0.24.0-dev.2	Rustls: Session Debug formatting exposes TLS master secrets and resumption PSKs
GHSA-h2v8-394m-p7vv	LOW	rustls	0.23.45	0.23.46, 0.24.0-dev.2	Rustls: Brotli certificate decompression can allocate an attacker-controlled amount of memory up to 1 GiB before authentication.
GHSA-vp88-798v-h67f	LOW	rustls	0.23.45	0.23.46, 0.24.0-dev.2	rustls: ECH rejection can expose buffered application data to authenticated outer server before `ech_required` alert
GHSA-w44r-93j7-qv28	LOW	rustls	0.23.45	0.23.46, 0.24.0-dev.2	rustls: An unauthenticated ServerHello poisons the per-name key-exchange record, so later ClientHellos carry only a classical X25519 share

Critical

High

Medium

Low

Unknown

Security report (Trivy) · image ztunnel 1.30.7

Install the chart

Deploy to Kubernetes with hardened defaults. The chart pins its image by signed digest, so you never track it yourself.

Install (latest)

helm install my-ztunnel oci://ghcr.io/quenchworks/charts/ztunnel --version 0.0.5

Deploys image (digest-pinned)

ztunnel1.30.7
C
ghcr.io/quenchworks/images/ztunnel@sha256:a0ff30bca99627f5303192c87ad70cf81fc9426b06dc42f654ff8ae360b0bf7d

Chart version: 0.0.5
App version: 1.30.7
Chart license: Apache-2.0
App license: Apache-2.0
Signed: cosign (keyless)
Values schema: yes
Last published: 2026-10-22

Values keys

image: repository digest pullPolicy
imagePullSecrets
caAddress
xdsAddress
clusterId
logLevel
extraEnvVars
priorityClassName
terminationGracePeriodSeconds
resources: requests limits
nodeSelector: kubernetes.io/os
tolerations

Verify the chart

cosign verify ghcr.io/quenchworks/charts/ztunnel:0.0.5 \
  --certificate-identity-regexp 'https://github.com/quenchworks/.+' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com

Transparency

The chart publishes its attestations on GitHub and the image it deploys carries its own on the same digest, publicly verifiable with the commands above. Both log to the Sigstore transparency log (Rekor), which cosign verify checks for you.

View the image View on ArtifactHub Chart source

Upstream project: https://istio.io