CVE-2026-45623
postcss: PostCSS: Information disclosure and denial of service via crafted CSS input
Sévérité par source
Le label propre à Trivy est CRITICAL. Critique selon NVD. Plus basse selon GHSA (élevée), Red Hat (moyenne).
Description
PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. In versions 8.5.11 and prior, the PreviousMap parses the /*# sourceMappingURL=PATH */ comment from any CSS string passed to process() and dereferences PATH against the local filesystem with no scheme, allowlist, or traversal check. An attacker who controls the CSS input can cause the host process to read any file readable by Node and leak the first ~10 bytes of its content through the resulting JSON.parse SyntaxError message. The bug also yields a precise file-existence oracle and a controllable-read primitive that may be combined with large-file targets for DoS. The behaviour is triggered with PostCSS's default options — no from, no map, no plugins required — and is therefore reachable from any pipeline that runs untrusted CSS through PostCSS (CMS themes, user-uploaded styles, browser-extension/userstyle processors, build pipelines for third-party packages, blog comment renderers, etc.). This issue has been fixed in version 8.5.12.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| chainguard | arangodb-3.11, arangodb-3.12, authentik-2025.12 et 36 autres | 3.11.14.5-r1 et 33 autres |
| debian 11 | node-postcss | pas de correctif indiqué |
| debian 12 | node-postcss | pas de correctif indiqué |
| debian 13 | node-postcss | pas de correctif indiqué |
| debian 14 | node-postcss | 8.5.12+~cs9.3.32-1 |
| echo | node-postcss | pas de correctif indiqué |
| echo npm::Echo OSV | postcss | 8.5.12 |
| minimos | homepage, kubeflow-pipelines-frontend, langfuse-3 et 4 autres | 2.0.0-r0 et 6 autres |
| npm::GitHub Security Advisory npm | postcss | 8.5.12 |
| rapidfort alma 10 | goose | pas de correctif indiqué |
| rapidfort alma 9 | goose | pas de correctif indiqué |
| rapidfort debian 12 | node-postcss | 0:8.5.12+~cs9.3.32-1 |
Afficher les 77 entrées de 21 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| chainguard | arangodb-3.11 | 3.11.14.5-r1 |
| chainguard | arangodb-3.12 | 3.12.9.4-r22 |
| chainguard | authentik-2025.12 | 2025.12.6-r6 |
| chainguard | authentik-2026.2 | 2026.2.6-r9 |
| chainguard | authentik-2026.5 | 2026.5.6-r4 |
| chainguard | authentik-fips-2026.2 | 2026.2.6-r5 |
| chainguard | authentik-fips-2026.5 | 2026.5.6-r3 |
| chainguard | cadence-web | 4.0.16-r4 |
| chainguard | commercial-gitlab-rails-ee-19.1 | 19.1.7-r3 |
| chainguard | commercial-gitlab-rails-ee-19.2 | 19.2.7-r1 |
| chainguard | commercial-gitlab-rails-ee-19.3 | 19.3.3-r1 |
| chainguard | commercial-gitlab-rails-ee-19.4 | 19.4.1-r1 |
| chainguard | commercial-gitlab-rails-ee-fips-19.1 | 19.1.9-r0 |
| chainguard | commercial-gitlab-rails-ee-fips-19.2 | 19.2.7-r1 |
| chainguard | commercial-gitlab-rails-ee-fips-19.3 | 19.3.3-r1 |
| chainguard | commercial-gitlab-rails-ee-fips-19.4 | 19.4.1-r1 |
| chainguard | gitlab-rails-ce-18.11 | 18.11.13-r0 |
| chainguard | gitlab-rails-ce-19.0 | 19.0.10-r0 |
| chainguard | gitlab-rails-ce-19.1 | 19.1.7-r6 |
| chainguard | gitlab-rails-ce-19.2 | 19.2.5-r2 |
| chainguard | gitlab-rails-ce-19.3 | 19.3.1-r6 |
| chainguard | gitlab-rails-ce-fips-18.10 | 18.10.8-r8 |
| chainguard | gitlab-rails-ce-fips-18.11 | 18.11.12-r2 |
| chainguard | gitlab-rails-ce-fips-18.9 | 18.9.8-r8 |
| chainguard | gitlab-rails-ce-fips-19.0 | 19.0.9-r3 |
| chainguard | gitlab-rails-ce-fips-19.1 | 19.1.7-r3 |
| chainguard | gitlab-rails-ce-fips-19.2 | 19.2.5-r2 |
| chainguard | gitlab-rails-ce-fips-19.3 | 19.3.1-r3 |
| chainguard | keep | 0.54.2-r2 |
| chainguard | keep-fips | 0.54.2-r3 |
| chainguard | langfuse-3 | 3.225.7-r6 |
| chainguard | langfuse-fips-3 | 3.224.2-r0 |
| chainguard | nextcloud-server-31 | 31.0.14-r6 |
| chainguard | nextcloud-server-33 | 33.0.7-r4 |
| chainguard | nextcloud-server-34 | 34.0.2-r2 |
| chainguard | pelias-api | 7.8.0-r7 |
| chainguard | semaphore | 2.18.29-r2 |
| chainguard | vitess-23 | 23.0.5-r5 |
| chainguard | vitess-24 | 24.0.3-r7 |
| debian 11 | node-postcss | pas de correctif indiqué |
| debian 12 | node-postcss | pas de correctif indiqué |
| debian 13 | node-postcss | pas de correctif indiqué |
| debian 14 | node-postcss | 8.5.12+~cs9.3.32-1 |
| echo | node-postcss | pas de correctif indiqué |
| echo npm::Echo OSV | postcss | 8.5.12 |
| minimos | homepage | 2.0.0-r0 |
| minimos | kubeflow-pipelines-frontend | 2.17.0-r0 |
| minimos | langfuse-3 | 3.224.2-r0 |
| minimos | n8n | 2.36.6-r0 |
| minimos | openclaw | 2026.4.29-r0 |
| minimos | trigger-dev | 4.5.11-r1 |
| minimos | verdaccio | 6.6.0-r0 |
| npm::GitHub Security Advisory npm | postcss | 8.5.12 |
| rapidfort alma 10 | goose | pas de correctif indiqué |
| rapidfort alma 9 | goose | pas de correctif indiqué |
| rapidfort debian 12 | node-postcss | 0:8.5.12+~cs9.3.32-1 |
| rapidfort debian 13 | node-postcss | 0:8.5.12+~cs9.3.32-1 |
| rapidfort fedora 43 | goose | 1.45.0-2.fc43 |
| rapidfort Oracle Linux 10 | goose | pas de correctif indiqué |
| rapidfort Oracle Linux 9 | goose | pas de correctif indiqué |
| rapidfort Red Hat 10 | goose | pas de correctif indiqué |
| rapidfort Red Hat 9 | goose | pas de correctif indiqué |
| Red Hat | goose | pas de correctif indiqué |
| Red Hat | nodejs-css-loader | pas de correctif indiqué |
| Red Hat | nodejs-sanitize-html | pas de correctif indiqué |
| Red Hat | openshift4/ose-console | pas de correctif indiqué |
| Red Hat | openshift4/ose-console-rhel9 | pas de correctif indiqué |
| Red Hat | postcss | pas de correctif indiqué |
| Red Hat | satellite/iop-advisor-frontend-rhel9 | pas de correctif indiqué |
| Red Hat | satellite/iop-host-inventory-frontend-rhel9 | pas de correctif indiqué |
| Red Hat | satellite/iop-vulnerability-frontend-rhel9 | pas de correctif indiqué |
| seal npm::Seal Security Database | @seal-security/postcss | 7.0.35-sp999, 7.0.39-sp2, 8.3.6-sp999, 8.4.20-sp999, 8.4.30-sp999 |
| seal npm::Seal Security Database | postcss | 7.0.35-sp999, 7.0.39-sp2, 8.3.6-sp999, 8.4.20-sp999, 8.4.30-sp999 |
| wolfi | langfuse-3 | 3.225.7-r6 |
| wolfi | nextcloud-server-33 | 33.0.7-r4 |
| wolfi | vitess-23 | 23.0.5-r5 |
| wolfi | vitess-24 | 24.0.3-r7 |
Références
- https://access.redhat.com/security/cve/CVE-2026-45623
- https://advisory.echohq.com/cve/CVE-2026-45623
- https://github.com/advisories/GHSA-6g55-p6wh-862q
- https://github.com/postcss/postcss
- https://github.com/postcss/postcss/commit/aaec7b78b3ce2792585b4b300ef1bd5dd5b3e8ad
- https://github.com/postcss/postcss/commit/c64b7488d2731dfa16213739b42c34faf5a9eba3
- https://github.com/postcss/postcss/releases/tag/8.5.12
- https://github.com/postcss/postcss/security/advisories/GHSA-6g55-p6wh-862q