Backstage: Cloud storage catalog locations may cross configured storage boundaries
Backstage is an open framework for building developer portals. Prior to 1.54.6, cloud storage catalog providers did not sufficiently validate object paths. A principal able to create or rename objects in a configured Azure Blob Storage or AWS S3 catalog source could cause catalog descriptors to be read from outside the intended storage boundary, limited to locations reachable with the backend's configured credentials. This issue is fixed in 1.54.6.
CVE-2026-106493
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-106493
backstage
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
plugin-catalog-backend-module-azure
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
plugin-catalog-backend-module-aws
Source reference: /containers/cna/affected/2/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
plugin-catalog-backend-module-azure
Source reference: /containers/cna/affected/3/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "backstage",
"product": "backstage",
"versions": [
{
"status": "affected",
"version": "< 1.54.6"
}
]
},
{
"vendor": "@backstage",
"product": "plugin-catalog-backend-module-azure",
"versions": [
{
"status": "affected",
"version": "< 0.17.8"
}
]
},
{
"vendor": "@backstage",
"product": "plugin-catalog-backend-module-aws",
"versions": [
{
"status": "affected",
"version": "< 0.4.27"
}
]
},
{
"vendor": "@backstage",
"product": "plugin-catalog-backend-module-azure",
"versions": [
{
"status": "affected",
"version": "< 0.3.21"
}
]
}
]- Related CVEs
- CVE-2026-106493
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #12116 · Revision 1
- Added to Heist Feed
- Publisher date