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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-178",
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106497.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "3.9.1"
}
],
"source": "AFFECTED_FIELD"
}
]
}