High severity7.7NVD Advisory· Published Oct 7, 2026· Updated Oct 7, 2026
CVE-2026-106510
CVE-2026-106510
Description
Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated user who can register catalog entities can provide a crafted mkdocs.yml causing arbitrary OS command execution on the TechDocs build host when the docs are built. This issue is fixed in versions 1.14.6 and 1.15.4.
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Affected products
2- Range: <1.14.6
Patches
Vulnerability mechanics
References
5- github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbbnvd
- github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9dnvd
- github.com/backstage/backstage/releases/tag/v1.50.5nvd
- github.com/backstage/backstage/releases/tag/v1.54.6nvd
- github.com/backstage/backstage/security/advisories/GHSA-4488-j8vj-vqqvnvd
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