{"id":"CVE-2026-106497","title":"Backstage is an open framework for building developer portals","summary":"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…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-178","CWE-863"],"vendor":"backstage","product":"backstage","affected":["backstage < 1.54.6","plugin-catalog-backend < 3.9.1"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T22:17:04.560","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106497","references":[{"url":"https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-06T22:23:15.966Z","slug":"CVE-2026-106497","body":"## Overview\n\nBackstage 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}