ghcr.io/linuxserver/bookstack:version-v21.12 container image
GitHub Container RegistryScanned 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
Radar Score is the sum of every finding’s contribution; the colour is the worst finding’s band.
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 |
|---|---|---|---|
| Critical | GHSA-x752-qjv4-c4hc | dompdf/ | 1.2.1 |
| Medium | GHSA-3cw5-7cxw-v5qg | dompdf/ | 2.0.2 |
| Medium | GHSA-gq6w-q6wh-jggc | knplabs/ | 1.4.2 |
| Medium | GHSA-v9qv-c7wm-wgmf | composer/ | 2.2.24 |
| Medium | GHSA-92rv-4j2h-8mjj | knplabs/ | 1.4.3 |
| Medium | GHSA-6x28-7h8c-chx4 | dompdf/ | 2.0.1 |
| Medium | GHSA-577p-7j7h-2jgf | dompdf/ | 2.0.0 |
| Medium | GHSA-gqw4-4w2p-838q | composer/ | 2.2.27 |
| Medium | GHSA-x7cr-6qr6-2hh6 | composer/ | 2.2.12 |
| Medium | GHSA-jm6m-4632-36hf | composer/ | 2.2.22 |
| Medium | GHSA-25mq-v84q-4j7r | guzzlehttp/ | 7.4.5 |
| Medium | GHSA-3vjh-xrhf-v9xh | dompdf/ | 2.0.0 |
| Medium | GHSA-h7vf-5wrv-9fhv | symfony/ | 5.4.20 |
| Medium | GHSA-f2wf-25xc-69c9 | guzzlehttp/ | 7.4.4 |
| Medium | GHSA-w248-ffj2-4v5q | guzzlehttp/ | 7.4.4 |
| Medium | GHSA-47f6-5gq3-vx9c | composer/ | 2.2.24 |
| Medium | GHSA-q559-8m2m-g699 | guzzlehttp/ | 7.4.5 |
| Medium | GHSA-cwmx-hcrq-mhc3 | guzzlehttp/ | 7.4.3 |
| Medium | GHSA-3rg7-wf37-54rm | symfony/ | 5.4.50 |
| Medium | GHSA-wg36-wvj6-r67p | composer/ | 2.2.27 |
| Medium | GHSA-5vg9-5847-vvmq | laravel/ | 12.60.0 |
| Medium | GHSA-f9f8-rm49-7jv2 | composer/ | 2.2.28 |
| Medium | GHSA-pcw8-m77r-2528 | mtdowling/ | 2.9.1 |
| Medium | GHSA-q7rv-6hp3-vh96 | guzzlehttp/ | 2.1.1 |
| Medium | GHSA-hm7p-r324-hhf3 | phpseclib/ | 3.0.19 |
| Low | GHSA-2f25-pfq3-c7h8 | phpseclib/ | 3.0.34 |
| Low | GHSA-f3qr-qr4x-j273 | phenx/ | 0.5.2 |
| Low | GHSA-2528-jw5q-ww88 | phpseclib/ | 3.0.36 |
| Low | GHSA-qq5c-677p-737q | symfony/ | 5.4.46 |
| Low | GHSA-78fx-h6xr-vch4 | laravel/ | 10.48.29 |
| Low | GHSA-f2qx-66wf-wvvx | phpseclib/ | 3.0.36 |
| Low | GHSA-3qx2-6f78-w2j2 | dompdf/ | 2.0.4 |
| Low | GHSA-qpmx-3rfj-7rhv | symfony/ | 5.4.52 |
| Low | GHSA-94g3-g5v7-q4jg | phpseclib/ | 3.0.50 |
| Low | GHSA-557v-xcg6-rm5m | aws/ | 3.288.1 |
| Low | GHSA-7c6p-848j-wh5h | composer/ | 2.2.23 |
| Low | GHSA-f5gf-2cj8-52g2 | dompdf/ | 3.1.6 |
| Low | GHSA-rvx4-ffvw-m9q3 | composer/ | 2.2.30 |
| Low | GHSA-5qj8-6xxj-hp9h | dompdf/ | 2.0.0 |
| Low | GHSA-wxmh-65f7-jcvw | guzzlehttp/ | 2.4.5 |
| Low | GHSA-j3f9-p6hm-5w6q | nesbot/ | 2.72.6 |
| Low | GHSA-2xf4-cg6j-vhgq | symfony/ | 1.38.1 |
| Low | GHSA-vvj3-c3rp-c85p | phpunit/ | 9.6.33 |
| Low | GHSA-ff7q-6vwh-v9m4 | phpseclib/ | 3.0.33 |
| Low | GHSA-2q4p-g7hv-5rgv | league/ | 2.9.0 |
| Low | GHSA-pf6p-25r2-fx45 | dompdf/ | 2.0.0 |
| Low | GHSA-vqc8-7275-q272 | symfony/ | 5.4.52 |
| Low | GHSA-ff5x-7qg5-vwf2 | phenx/ | 0.5.1 |
| Low | GHSA-8hg6-c449-896m | dompdf/ | 3.1.6 |
| Low | GHSA-jjv6-8j6v-6j52 | league/ | 2.9.1 |
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.