CVE-2026-106462
6.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Exploitability: 3.1 / Impact: 2.7
Source: security-advisories@github.com (Secondary)
Description
Backstage is an open framework for building developer portals. Prior to 1.54.6, scaffolder source-control actions may not consistently enforce intended credential boundaries. An authenticated user could cause an affected action to fall back to broader integration credentials and perform operations with more access than intended. This issue is fixed in 1.54.6 when operators also enable scaffolder.requireScmUserCredentials after upgrading.
Affected (7)
Products: Linuxfoundation: Backstage/plugin Scaffolder Backend, Backstage/plugin Scaffolder Backend Module Azure, Backstage/plugin Scaffolder Backend Module Bitbucket Cloud, Backstage/plugin Scaffolder Backend Module Bitbucket Server, Backstage/plugin Scaffolder Backend Module Github, Backstage/plugin Scaffolder Backend Module Gitlab, Backstage
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| version < 0.11.10 | |
| version < 0.2.25 | |
| version < 0.3.10 | |
| version < 0.2.25 | |
| version < 0.9.13 | |
| version < 0.11.10 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| version < 1.54.6 |
Related CWEs
CWE-441
Unintended Proxy or Intermediary ('Confused Deputy')
The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.
CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
References (3)
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
PatchRelease Notes
Source: security-advisories@github.com
MitigationVendor Advisory
Timeline
No history available yet.