CVE-2026-106495

Published: Oct 12, 2026Modified: Oct 16, 2026

4.3

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploitability: 2.8 / Impact: 1.4

Source: security-advisories@github.com (Secondary)

Description

Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper access control in backend action invocation. An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced. This issue is fixed in version 0.17.8.

Related CWEs

CWE-284

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (3)

https://github.com/backstage/backstage/commit/a8fb34a990a69bcb745e85a3213cf9e5ba2d31a3

Source: security-advisories@github.com

https://github.com/backstage/backstage/releases/tag/v1.54.6

Source: security-advisories@github.com

https://github.com/backstage/backstage/security/advisories/GHSA-3xr5-8w6c-p5gw

Source: security-advisories@github.com

Timeline

No history available yet.