StackRadar

mattermost 0.0.23 Helm chart

quench-mattermostVerified publisher

Scored 26 Sept 2026

Open-source, self-hosted team collaboration and messaging platform (Team Edition) — channels, direct messages, and file sharing. Hardened by QuenchWorks as a minimal, nonroot, 0-CVE image, cosign-signed and pinned by digest. Bundles PostgreSQL.

Version 0.0.23app version 11.11.1 (not verified against the render) 0Artifact Hub

mattermost 0.0.23 deploys 2 container images: ghcr.io/quenchworks/images/postgresql and ghcr.io/quenchworks/images/mattermost. Across them, 18 findings — 0 critical, 0 high. The highest contribution is CGA-6ph6-75jp-484p in zlib 1.3.2-r5, fixed in 1.3.2.1_rc20260601-r0.

Radar Score

13400117

18 findings over 2 of 2 images measured

Radar Score is the sum of every finding’s contribution; the colour is the worst finding’s band.

Container images

2 images
ImageTagVulnerabilitiesRadar Score
ghcr.io/quenchworks/images/postgresqldigest-pinned00112106
ghcr.io/quenchworks/images/mattermostdigest-pinned000528

Rendered with the chart’s default values for linux/amd64. Optional subcharts, images set by operator flags and images inside CRD payloads are not seen and are counted as unmeasured.

Vulnerabilities

17 distinct across the version’s images
SeverityAdvisoryPackageFixed in
MediumCGA-6ph6-75jp-484pzlib@1.3.2-r51.3.2.1_rc20260601-r0
LowCGA-84hv-hfvq-hmvjpython-3.13@3.13.15-r43.13.15-r6
LowCGA-35fq-7ggc-gcf2glibc-2.44@2.44-r12.44-r4
LowCGA-7j4r-669f-qh6vpython-3.13@3.13.15-r4no fix listed
LowCGA-hrv7-pwqg-466jpython-3.13@3.13.15-r4no fix listed
LowCGA-hrrj-4837-fgpwpython-3.13@3.13.15-r43.13.15-r5
LowCGA-8fx3-25f8-fh5xpython-3.13@3.13.15-r4no fix listed
LowCGA-36r3-9m2m-pwvxpython-3.13@3.13.15-r4no fix listed
LowCGA-32c9-fmx5-865mglibc-2.44@2.44-r6no fix listed
LowCGA-gvr8-r35v-jwr6glibc-2.44@2.44-r6no fix listed
LowCGA-3p64-pj6v-586cglibc-2.44@2.44-r6no fix listed
LowCGA-2727-9j94-3x3pglibc-2.44@2.44-r6no fix listed
LowCGA-2w63-hvq4-f4pcglibc-2.44@2.44-r12.44-r6
LowCGA-cvw6-9pj6-fx5jopenssl@3.6.4-r0no fix listed
LowCGA-ww43-fhm7-mff3openssl@3.6.4-r0no fix listed
LowGO-2026-5932golang.org/x/crypto@v0.57.0no fix listed
LowCGA-5p62-38p7-f47cpython-3.13@3.13.15-r4no fix listed

Indexed versions

VersionPublishedApp versionVulnerabilitiesRadar Score
0.0.24latest—11.11.10001590
0.0.23—11.11.100117134
0.0.22—11.11.000114115
0.0.21—11.10.100113110
0.0.20—11.10.100117134

The latest version and the previous major, as selected nightly from the repository’s index.

README badge
[![Radar Score](https://charts.stackradar.io/badge/quench-mattermost/mattermost.svg)](https://charts.stackradar.io/charts/quench-mattermost/mattermost)

Markdown. The badge shows the latest version’s band and Radar Score, refreshed daily.

helm v3.16.4 · syft 1.42.1 · rendered 25 Sept 2026 · scanned 26 Sept 2026 · advisories as of 26 Sept 2026

Corrections: contact@stackradar.io

Catalogue: Artifact Hub · Advisories: OSV · Exploitation: FIRST EPSS, CISA KEV.