ghcr.io/linuxserver/bookstack:version-v21.12 container image

GitHub Container Registry

Scanned 14 Sept 2026

Deployed by 1 of 17,781 indexed charts (latest versions) at this tag.GitHub Container Registry all tags of ghcr.io/linuxserver/bookstack

ghcr.io/linuxserver/bookstack:version-v21.12 resolved to f05447347ff1, scanned 14 Sept 2026: 97 findings, 1 critical; deployed by 1 chart, among them bookstack.

Radar Score

1,269102471

97 findings on digest f05447347ff1 · scanned 14 Sept 2026

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

Digests

1 digest

Tag	Digest	Used by	Last seen	Vulnerabilities	Radar Score
version-v21.12resolves to	f05447347ff1	1 chart	8 days ago	102471	1,269

Digests this tag resolved to in indexed charts’ default renders. A tag can move; the digest is what was scanned.

Critical findings

1 distinct on this digest

Critical: findings whose contribution to the Radar Score is 70–100. Show every band

Findings for digest f05447347ff1 as scanned on 14 Sept 2026 with syft 1.42.1 for linux/amd64, advisories as of 14 Sept 2026. Other architectures may differ.

Severity	Advisory	Package	Fixed in
Critical	GHSA-x752-qjv4-c4hc	dompdf/dompdf@v1.1.1	1.2.1

Used by

1 chart

Chart	Version	Tag	Containers
bookstackgeek-cookbookVerified publisher	5.2.0	version-v21.12	1

Counts are over the indexed charts’ latest versions, rendered with default values, and say nothing about images outside the indexed set.