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CVE-2026-106498

7.7 high SSVC exploitation: none Analyzed
NVD · CVE.org

Backstage is an open framework for building developer portals. Prior to 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1, the @backstage/plugin-catalog-backend package is affected by improper url validation in catalog entity placeholder resolution. An authenticated Backstage user could craft a catalog entity with placeholder directives that reference resources outside the entity's source repository. Under certain configurations, this could allow access to data not intended to be available to the user. This issue is fixed in versions 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1.

Fix

Patch, vendor advisory and mitigation references on NVD 11

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. Cpes+2 CPE criteria (now 2)NVD modified 2026-10-16 15:22
  2. StatusUndergoing Analysis → AnalyzedNVD modified 2026-10-16 15:22
  3. First seenCVSS 7.7NVD modified 2026-10-09 02:17

Affected (CPE criteria) 2

  • cpe:2.3:a:linuxfoundation:backstage_plugin-catalog-backend:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

References 11