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CVE-2026-106509 Details

Description

Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs theme configuration in techdocs. When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in mkdocs.yml that cause arbitrary code execution during the documentation build process. This issue is fixed in versions 1.14.6 and 1.15.4.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.7 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbb	[email protected]
https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9d	[email protected]
https://github.com/backstage/backstage/releases/tag/v1.50.5	[email protected]
https://github.com/backstage/backstage/releases/tag/v1.54.6	[email protected]
https://github.com/backstage/backstage/security/advisories/GHSA-8w7q-29mw-gf5c	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1336	Improper Neutralization of Special Elements Used in a Template Engine	[email protected]
CWE-94	Improper Control of Generation of Code ('Code Injection')	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes