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QuenchWorks

emqx

Image · Messaging · standard · v6.3.1

A+cosign signedSPDX SBOMSLSA provenanceamd64 · arm64Rebuilt 2026-09-20

Massively scalable, distributed MQTT broker for IoT, IIoT, and connected vehicles. Speaks MQTT 5.0 over TCP/TLS/websockets with a clustering engine and a web dashboard. Packaged from EMQX's official Erlang/OTP release. Licensed BSL 1.1 (single node free; clustering requires a commercial license).

Current digest (deployed by the chart)

sha256:00d53992d610598fbef66534ece9f98472bd87aca703685c0658fab442c62577

Signatures, the SBOM, and provenance all attach to this digest. Pin to it for reproducible, tamper-evident pulls.

Image
ghcr.io/quenchworks/images/emqx:6.3.1
Signed
cosign keyless
SBOM
SPDX, on digest
Provenance
SLSA build
Architectures
amd64, arm64
Runs as
nonroot (uid 1001)
Root filesystem
read-only
Image size
131.9 MB

Published versions

1 tag

Each tag is a multi-arch index (amd64 + arm64) pinned by digest. Tagged by version, never :latest.

VersionSizePublishedDigest
6.3.1latest131.9 MB2026-09-20sha256:00d53992d610…

Security report (Trivy)

A+· 100/1000 fixable CVEs
0
Critical
0
High
0
Medium
0
Low
0
Unknown
fixable per nightly scan · peak 1015 of 100 days with any · 2026-06-29 to 2026-10-07

Pull the image

Run it directly with Docker, Podman, or any Kubernetes workload. Nonroot, read-only root filesystem, built for amd64 and arm64.

Pull (tag)

docker pull ghcr.io/quenchworks/images/emqx:6.3.1

Pinned by digest (recommended)

docker pull ghcr.io/quenchworks/images/emqx@sha256:00d53992d610598fbef66534ece9f98472bd87aca703685c0658fab442c62577

Tags

6.3.16.3.1-amd646.3.1-arm64

Images are tagged by app version (never :latest): a multi-arch index plus per-arch tags.

App version
6.3.1
Architectures
amd64, arm64
Runs as
nonroot (uid 1001)
Root filesystem
read-only
License
BUSL-1.1

Verify the supply chain

This image is cosign-signed and carries an SPDX SBOM and a SLSA build-provenance attestation on the same digest. Check all three yourself:

# 1. signature — built and signed by QuenchWorks CI
cosign verify ghcr.io/quenchworks/images/emqx:6.3.1 \
  --certificate-identity-regexp 'https://github.com/quenchworks/.+' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com

# 2. SLSA build provenance — which workflow built it, from what
cosign verify-attestation --type https://slsa.dev/provenance/v1 ghcr.io/quenchworks/images/emqx:6.3.1 \
  --certificate-identity-regexp 'https://github.com/quenchworks/.+' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com

# 3. SPDX SBOM — the package inventory
cosign verify-attestation --type https://spdx.dev/Document/v2.3 ghcr.io/quenchworks/images/emqx:6.3.1 \
  --certificate-identity-regexp 'https://github.com/quenchworks/.+' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com

See the SBOM & provenance guide for reading the SBOM and using these checks in CI.

Transparency

Every image carries its SBOM and provenance as attestations on the same digest, publicly verifiable with the commands above (they check the package and the Sigstore transparency log, Rekor).

View the Helm chartView package

Upstream project: https://www.emqx.io