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CVE-2026-106509Published

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 d…

Exact source revision recorded 25 Oct 2026 04:17:41 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

nvd · CVE-2026-106509

Published

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.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-94 · CWE-1336

Original publisher date fields

published: 2026-10-06T22:17:06.463

lastModified: 2026-10-09T17:34:17.120

7 source CPE criteria · context only
  • cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
  • cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
  • cpe:2.3:a:linuxfoundation:backstage:1.51.0:-:*:*:*:*:*:*
  • cpe:2.3:a:linuxfoundation:backstage:1.51.0:next0:*:*:*:*:*:*
  • cpe:2.3:a:linuxfoundation:backstage:1.51.0:next1:*:*:*:*:*:*
  • cpe:2.3:a:linuxfoundation:backstage:1.51.0:next2:*:*:*:*:*:*
  • cpe:2.3:a:linuxfoundation:backstage:1.51.0:next3:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
6 Oct 2026 22:17:06 UTC
Source modified
9 Oct 2026 17:34:17 UTC
Observed here
25 Oct 2026 04:17:41 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 7.7 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L

CVSS 3.1 · [email protected] · Primary · 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 10 Nov 13:41 UTC · 275 of 275 readable · 274 fully read · documentation 469/469 current

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