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QuenchWorks

mattermost 0.0.10

Chart · Messaging · standard · v0.0.10

digest pinnedcosign signedSPDX SBOMSLSA provenanceamd64 · arm64

Open-source, self-hosted team messaging and collaboration platform (a Slack alternative) with channels, direct messages, file sharing, and integrations. Packaged from Mattermost's official Team Edition server release; requires an external PostgreSQL.

Version

0.0.12 · latest0.0.110.0.100.0.90.0.80.0.70.0.60.0.50.0.40.0.30.0.20.0.1

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

Released version

This is the 0.0.10 release of the mattermost chart, published 2026-07-21.For the live security report and the currently deployed image digest, see the latest release.

Signed
cosign keyless
SBOM
SPDX, on image
Provenance
SLSA build
Architectures
amd64, arm64
Runs as
nonroot (uid 1001)
Root filesystem
read-only

Security report (Trivy)

D· 0/10022 fixable · rebuild clears them

Vulnerability detail

mattermost 11.9.0 · 12 CVE
CVESeverityPackageInstalledFixed inTitle
CVE-2026-39821HIGHstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing
CVE-2026-46600HIGHstdlibv1.26.51.26.6, 1.27.0-rc.3golang.org/x/net/dns/dnsmessage: golang.org/x/net/dns/dnsmessage: Denial of Service via invalid DNS record parsing
CVE-2026-33818UNKNOWNstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3Enforce a recursion limit in Unmarshal to prevent stack exhaustion whe ...
CVE-2026-46603UNKNOWNgolang.org/x/imagev0.43.00.45.0Excessive memory allocation during VP8L decoding in golang.org/x/image
CVE-2026-56853UNKNOWNstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3When a server is configured to support unencrypted HTTP/2, it reads a ...
CVE-2026-56858UNKNOWNstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3Previously, pathological inputs could close an unescaped '/' early, al ...
CVE-2026-56859UNKNOWNstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3Previously, DecodeElement would reset the depth counter causing it to ...
CVE-2026-56860UNKNOWNstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3Previously, resolving relative paths containing parent directory ('..' ...
CVE-2026-56862UNKNOWNstdlibv1.26.51.25.13, 1.26.6, 1.27.0-rc.3Handshake messages, such as KeyUpdate, are always considered as state- ...
CVE-2026-56864UNKNOWNgolang.org/x/modv0.37.00.40.0A malicious GOSUMDB was capable of serving arbitrary module content no ...
CVE-2026-56865UNKNOWNgolang.org/x/modv0.37.00.40.0A malicious GOPROXY was previously capable of forging up to two sumdb ...
GO-2026-5932UNKNOWNgolang.org/x/cryptov0.53.0— not fixableThe golang.org/x/crypto/openpgp package is unmaintained, unsafe by design, and has known security issues
0
Critical
4
High
0
Medium
0
Low
20
Unknown

Security report (Trivy) · image mattermost 11.9.0

Install the chart

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

Install (pinned to 0.0.10)

helm install my-mattermost oci://ghcr.io/quenchworks/charts/mattermost --version 0.0.10
Chart version
0.0.10
Chart license
AGPL-3.0-only
App license
AGPL-3.0
Service port
8065
Signed
cosign (keyless)
Released
2026-07-21

Verify the chart

cosign verify ghcr.io/quenchworks/charts/mattermost:0.0.10 \
  --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 imageView on ArtifactHubChart source

Upstream project: https://mattermost.com