CVE-2026-106508

Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by potential file exposure through local techdocs publisher. When using the local TechDocs publisher (techdocs.publisher.type: 'local'), it was possible for the documentation serving endpoint to follow filesystem references outside the intended documentation tree, potentially exposing host files to authenticated users. This is mitigated by the fact that exploration requires preconditions that do not arise through normal MkDocs operation. Cloud-based publishers (S3, GCS, Azure Blob Storage) are not affected. This issue is fixed in version 1.15.4.
Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

History

09 Oct 2026, 17:44

Type Values Removed Values Added
CPE cpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
First Time Linuxfoundation backstage Plugin-techdocs-node
Linuxfoundation
Linuxfoundation backstage
References () https://github.com/backstage/backstage/commit/6aecb26f337ffec1d4e67ce903cf1e39b6082ec4 - () https://github.com/backstage/backstage/commit/6aecb26f337ffec1d4e67ce903cf1e39b6082ec4 - Patch
References () https://github.com/backstage/backstage/releases/tag/v1.54.6 - () https://github.com/backstage/backstage/releases/tag/v1.54.6 - Patch, Release Notes
References () https://github.com/backstage/backstage/security/advisories/GHSA-cm77-ch27-6w6v - () https://github.com/backstage/backstage/security/advisories/GHSA-cm77-ch27-6w6v - Mitigation, Vendor Advisory

06 Oct 2026, 22:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-06 22:17

Updated : 2026-10-09 17:44


NVD link : CVE-2026-106508

Mitre link : CVE-2026-106508

CVE.ORG link : CVE-2026-106508


JSON object : View

Products Affected

linuxfoundation

  • backstage_plugin-techdocs-node
  • backstage
CWE
CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-59

Improper Link Resolution Before File Access ('Link Following')