Description
Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted TechDocs content when entity-level permissions are enabled. Deployments that intentionally disable the default backend authentication policy may have broader exposure. This issue is fixed in version 2.2.4.
Published: 2026-10-06
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-7mfx-xg57-53c9 Backstage: Improper input validation in TechDocs static content requests
History

Wed, 07 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 06 Oct 2026 21:00:00 +0000

Type Values Removed Values Added
Description Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted TechDocs content when entity-level permissions are enabled. Deployments that intentionally disable the default backend authentication policy may have broader exposure. This issue is fixed in version 2.2.4.
Title Backstage: Improper input validation in TechDocs static content requests
Weaknesses CWE-22
CWE-23
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-07T17:06:57.542Z

Reserved: 2026-10-06T18:46:47.766Z

Link: CVE-2026-106490

cve-icon Vulnrichment

Updated: 2026-10-07T15:27:12.097Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-06T21:17:17.927

Modified: 2026-10-07T17:16:49.213

Link: CVE-2026-106490

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T00:15:07Z

Weaknesses
  • CWE-22

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

  • CWE-23

    Relative Path Traversal