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.

Vulnerabilities

97 distinct on this digest

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
Low	GHSA-j8pm-gj4c-rq4x	league/commonmark@1.6.6	2.9.1
Low	GHSA-8rr7-cvq3-gmfh	league/commonmark@1.6.6	2.10.0
Low	GHSA-c2pc-g5qf-rfrf	league/commonmark@1.6.6	2.6.0
Low	GHSA-h5x3-xfc9-m39h	symfony/routing@v5.4.0	5.4.53
Low	GHSA-97m3-52wr-xvv2	phenx/php-svg-lib@v0.3.3	0.5.2
Low	GHSA-3527-qv2q-pfvx	league/commonmark@1.6.6	2.7.0
Low	GHSA-4486-gxhx-5mg7	psy/psysh@v0.10.12	0.11.23
Low	GHSA-x6g4-fwcc-jj8w	symfony/dom-crawler@v5.4.0	5.4.52
Low	GHSA-3qpq-r242-jqj7	phpseclib/phpseclib@3.0.12	3.0.52
Low	GHSA-4v26-v6cg-g6f9	robrichards/xmlseclibs@3.1.1	3.1.5
Low	GHSA-cx96-42px-69fm	dompdf/dompdf@v1.1.1	3.1.6
Low	GHSA-c5fp-p67m-gq56	knplabs/knp-snappy@v1.3.1	1.7.0
Low	GHSA-5j8p-438x-rgg5	onelogin/php-saml@4.0.0	4.3.1
Low	GHSA-v5mv-p594-2x33	guzzlehttp/guzzle@7.4.1	7.15.2
Low	GHSA-j8qw-6jw8-r297	dompdf/dompdf@v1.1.1	3.1.6
Low	GHSA-vpr4-p6fq-85jc	knplabs/knp-snappy@v1.3.1	1.7.1
Low	GHSA-59pp-r3rg-353g	composer/composer@2.1.14	2.2.26
Low	GHSA-72xp-p242-47p9	symfony/routing@v5.4.0	5.4.52
Low	GHSA-499r-g7pc-vmp9	composer/composer@2.1.14	2.2.29
Low	GHSA-29pj-957v-52mc	league/commonmark@1.6.6	2.9.0
Low	GHSA-c4cc-x928-vjw9	robrichards/xmlseclibs@3.1.1	3.1.4
Low	GHSA-r39x-jcww-82v6	symfony/process@v5.4.0	5.4.51
Low	GHSA-h95v-h523-3mw8	guzzlehttp/guzzle@7.4.1	7.15.1
Low	GHSA-wm3w-8rrp-j577	guzzlehttp/guzzle@7.4.1	7.15.1
Low	GHSA-27qh-8cxx-2cr5	aws/aws-sdk-php@3.208.5	3.371.4
Low	GHSA-g2gp-3wwq-f4ph	league/commonmark@1.6.6	2.9.0
Low	GHSA-jfm3-95jq-q3rf	league/commonmark@1.6.6	2.9.0
Low	GHSA-m557-wrgg-6rp4	phpseclib/phpseclib@3.0.12	3.0.54
Low	GHSA-cwxw-98qj-8qjx	guzzlehttp/guzzle@7.4.1	7.12.1
Low	GHSA-gjfg-22fp-rrxx	composer/composer@2.1.14	2.2.29
Low	GHSA-f7vp-7xgx-4w4r	guzzlehttp/guzzle@7.4.1	7.15.2
Low	GHSA-f283-ghqc-fg79	guzzlehttp/guzzle@7.4.1	7.15.1
Low	GHSA-94pj-82f3-465w	guzzlehttp/guzzle@7.4.1	7.14.2
Low	GHSA-x8cp-jf6f-r4xh	aws/aws-sdk-php@3.208.5	3.368.0
Low	GHSA-wpwq-4j6v-78m3	guzzlehttp/guzzle@7.4.1	7.12.1
Low	GHSA-34xg-wgjx-8xph	guzzlehttp/psr7@2.1.0	2.10.2
Low	GHSA-hq7v-mx3g-29hw	guzzlehttp/psr7@2.1.0	2.10.2
Low	GHSA-vm85-hxw5-5432	guzzlehttp/psr7@2.1.0	2.12.1
Low	GHSA-c2w2-prh8-qm98	guzzlehttp/psr7@2.1.0	2.12.3
Low	GHSA-r854-jrxh-36qx	phpseclib/phpseclib@3.0.12	3.0.51
Low	GHSA-g446-98w2-8p5w	guzzlehttp/guzzle@7.4.1	7.12.3
Low	GHSA-mrqx-rp3w-jpjp	symfony/http-foundation@v5.4.1	5.4.46
Low	GHSA-g6xq-892h-64w3	composer/composer@2.1.14	2.2.29
Low	GHSA-crmm-hgp2-wgrp	laravel/framework@v8.76.1	12.61.1
Low	GHSA-7x2p-4jvh-6384	dompdf/dompdf@v1.1.1	3.1.6
Low	GHSA-wvh6-f5jh-8gw4	dompdf/dompdf@v1.1.1	3.1.6
None	GHSA-gv7v-rgg6-548h	laravel/framework@v8.76.1	8.83.28

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.