CVE-2026-106557
CVE-2026-106557 · Backstage: Improper input validation in TechDocs Markdown extension configuration
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package did not sufficiently validate TechDocs Markdown extension configuration. An authenticated user who can register or modify documentation sources may cause a TechDocs build to access resources outside the intended documentation boundary, potentially exposing backend-host data or internal network resources. This issue is fixed in versions 1.14.6 and 1.15.4 when pymdown-extensions 10.21.3 or later is also used, normally through mkdocs-techdocs-core 1.7.0 or later.
CVSS 7.7 · Élevée · EPSS 0,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
backstage
- Versions du logiciel
- < 1.50.5: Concernée
- >= 1.51.0-next.0, < 1.54.6: Concernée
Aucun correctif publié
plugin-techdocs-node
- Versions du logiciel
- < 1.14.6: Concernée
- >= 1.15.0, < 1.15.4: Concernée
Aucun correctif publié
@backstage/plugin-techdocs-node npm
- Plages de versions concernées
- SEMVER: < 1.15.4
Mettez à jour vers 1.15.4
Sources originales
- https://github.com/backstage/backstage/security/advisories/GHSA-f7v3-xhm6-w245
- https://github.com/backstage/backstage/commit/017ace52d9b327ededc6704cf17799c875ae0f29
- https://github.com/backstage/backstage/commit/2d9de4ca117a529de4b6ed7dfb7aa507ca7b3f91
- https://github.com/backstage/backstage/releases/tag/v1.50.5
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- https://nvd.nist.gov/vuln/detail/CVE-2026-106557