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": [
{
"range": [
{
"fixed": "3.9.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
}
]
}
]
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.54.6"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "21424faa2e280a6bc6b9e5c5245952f16aafca7b"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v1.54.6",
"range": [
{
"fixed": "0e67bc1fc88fba3a8cb716d3584cef05ecbcf9a8"
}
],
"source": "REFERENCES_TAG"
}
]
}