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QuenchWorks

connaisseur

Image · Security & supply chain · standard · v3.13.0

D 4cosign signedSPDX SBOMSLSA provenanceamd64 · arm64Rebuilt 2026-10-05

Connaisseur, the Kubernetes admission controller that verifies container image signatures (Cosign/Sigstore, Notary v1 and v2) against trust roots before a pod is admitted, with per-image policy rules. Serves HTTPS on 5000 with /mutate, /health and /metrics; config and certificates are mounted under /app.

Version

3.13.0 · latest3.12.03.11.1

The latest line lives at the base page; older lines have their own page so you can pin and verify exactly that version.

Current digest (deployed by the chart)

sha256:8111fa613c5c91c2185180a0cf5479ca378fbd6f8482d1232e7ec1ca3159f9cb

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

Image
ghcr.io/quenchworks/images/connaisseur:3.13.0
Signed
cosign keyless
SBOM
SPDX, on digest
Provenance
SLSA build
Architectures
amd64, arm64
Runs as
nonroot (uid 1001)
Root filesystem
read-only
Image size
26.9 MB

Published versions

3 tags

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

VersionSizePublishedDigest
3.13.0latest26.9 MB2026-10-05sha256:8111fa613c5c…
3.12.026.1 MB2026-10-05sha256:c235e67e8ae7…
3.11.125.8 MB2026-10-05sha256:fdbd57a27c6f…

Security report (Trivy)

D· 74/1004 open · no upstream fix yet

Vulnerability detail

connaisseur 3.13.0 · 4 CVE
CVESeverityPackageInstalledFixed inTitle
CVE-2026-41567HIGHgithub.com/docker/dockerv28.5.2+incompatible— not fixabledocker: Moby/Docker Engine: Arbitrary Code Execution via malicious container image and compressed archive upload
CVE-2026-42306HIGHgithub.com/docker/dockerv28.5.2+incompatible— not fixablegithub.com/docker/docker: github.com/moby/moby: Moby container framework: Host file overwrite via race condition in docker cp mount setup
CVE-2026-41568MEDIUMgithub.com/docker/dockerv28.5.2+incompatible— not fixablegithub.com/docker/docker: github.com/moby/moby: Moby: Denial of Service via race condition in docker cp mount setup
GO-2026-5932UNKNOWNgolang.org/x/cryptov0.56.0— not fixableThe golang.org/x/crypto/openpgp package is unmaintained, unsafe by design, and has known security issues
0
Critical
2
High
1
Medium
0
Low
1
Unknown

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/connaisseur:3.13.0

Pinned by digest (recommended)

docker pull ghcr.io/quenchworks/images/connaisseur@sha256:8111fa613c5c91c2185180a0cf5479ca378fbd6f8482d1232e7ec1ca3159f9cb

Tags

3.13.03.13.0-amd643.13.0-arm64

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

App version
3.13.0
Architectures
amd64, arm64
Runs as
nonroot (uid 1001)
Root filesystem
read-only
License
Apache-2.0

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/connaisseur:3.13.0 \
  --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/connaisseur:3.13.0 \
  --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/connaisseur:3.13.0 \
  --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://sse-secure-systems.github.io/connaisseur/