Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted TechDocs content when entity-level permissions are enabled.
Deployments that intentionally disable the default backend authentication policy may have broader exposure. This issue is fixed in version 2.2.4.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
@backstage:plugin-techdocs-backend
backstage:backstage
References 3
https://github.com/backstage/backstage/security/advisories/GHSA-7mfx-xg57-53c9
https://github.com/backstage/backstage/security/advisories/GHSA-7mfx-xg57-53c9
https://github.com/backstage/backstage/commit/40ecc4c2e88b0218125b0a3405d1f6315…
https://github.com/backstage/backstage/commit/40ecc4c2e88b0218125b0a3405d1f6315b321974
https://github.com/backstage/backstage/releases/tag/v1.54.6
https://github.com/backstage/backstage/releases/tag/v1.54.6