Vulnerability GHSA-rg9r-hr7g-5gc2

Medium Risk
MEDIUM RISK
CVSS Score: 6.5
Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
3 hours ago
October 07, 2026 at 06:00 PM UTC
Backstage: Improper authorization enforcement for TechDocs static content
0.0.0-nightly-20201012104 - 2.2.3
0.0.0-nightly-20201012104 - 2.2.3

Summary

Backstage: Improper authorization enforcement for TechDocs static content

Details

Impact

An authenticated user with access to one TechDocs documentation site could craft a URL able to read documentation belonging to a different entity. This only affects deployments using the external TechDocs builder with an external storage provider (S3, GCS, etc.) and the permission framework enabled. Instances that do not use the permission framework are unaffected, since TechDocs content is visible to all authenticated users by design.

Patches

Patched in @backstage/plugin-techdocs-backend version 2.2.4

Workarounds

  • None other than upgrading. Deployments that serve TechDocs from local storage are not affected.

Timeline

Published
3 hours ago
October 07, 2026 at 06:00 PM UTC
Fixed (2.2.4)
1 month ago
August 28, 2026 at 08:21 AM UTC
Last Modified
3 hours ago
October 07, 2026 at 06:15 PM UTC