Description
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.
Published: 2026-10-06
Score: 4.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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History

Tue, 06 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.
Title Backstage: Inconsistent catalog property permission evaluation
Weaknesses CWE-178
CWE-863
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-06T21:18:31.150Z

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

Link: CVE-2026-106497

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses
  • CWE-178

    Improper Handling of Case Sensitivity

  • CWE-863

    Incorrect Authorization