CVE WatchOct 16, 2026

CVE-2026-106497

Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by

CVSS

4.3

Medium

EPSS

0.2%

KEV

—

Exploit Today

0-100

Published: Oct 6, 2026 · Last modified: Oct 16, 2026 · CWE-178 · CWE-863

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-072026-10-23

Technical 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.

Official references

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