Low 3.0Published Oct 6, 2026

CVE-2026-106493Backstage: Cloud storage catalog locations may cross configured storage boundaries

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects backstage and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 3.0 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Undergoing Analysis
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

backstage backstage backstage:backstage (from the name)	before 1.54.6	CNA record
@backstage plugin-catalog-backend-module-azure backstage:plugin_catalog_backend_module_azure (from the name)	before 0.17.8	CNA record
@backstage plugin-catalog-backend-module-aws backstage:plugin_catalog_backend_module_aws (from the name)	before 0.4.27	CNA record

References

https://github.com/backstage/backstage/security/advisories/GHSA-xvh9-35w9-42m4x-refsource-confirm
https://github.com/backstage/backstage/commit/47ddbd8b4a3efd812309f759c38f4877fbd9e5ffx-refsource-misc
https://github.com/backstage/backstage/releases/tag/v1.54.6x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.