Backstage: Catalog unprocessed read endpoints allow authenticated cross-owner data access without permission checks
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Backstage is an open framework for building developer portals. Prior to 0.6.11, the unprocessed entities read endpoints in @backstage/plugin-catalog-backend-module-unprocessed do not enforce permission authorization checks. Any authenticated user can access unprocessed entity records regardless of ownership. This is an information disclosure vulnerability affecting Backstage installations using this module. This is patched in @backstage/plugin-catalog-backend-module-unprocessed version 0.6.11, @backstage/plugin-catalog-unprocessed-entities-common version 0.0.15 and @backstage/plugin-catalog-unprocessed-entities version 0.2.30.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| backstage | plugin-catalog-backend-module-unprocessed | before 0.6.11 | 0.6.11 | Patch available | CNA |
| backstage | plugin-catalog-unprocessed-entities | before 0.2.30 | 0.2.30 | Patch available | CNA |
| backstage | plugin-catalog-unprocessed-entities-common | before 0.0.15 | 0.0.15 | Patch available | CNA |
| — | @backstage/plugin-catalog-unprocessed-entities-common (npm) | before 0.0.15 | 0.0.15 | Patch available | GHSA-p7g9-rp3g-mgfg |
| — | @backstage/plugin-catalog-unprocessed-entities (npm) | before 0.2.30 | 0.2.30 | Patch available | GHSA-p7g9-rp3g-mgfg |
| — | @backstage/plugin-catalog-backend-module-unprocessed (npm) | before 0.6.11 | 0.6.11 | Patch available | GHSA-p7g9-rp3g-mgfg |
- plugin-catalog-backend-module-unprocessed Vendorbackstage Affected before 0.6.11 Fixed in 0.6.11 Patch available CNA
- plugin-catalog-unprocessed-entities Vendorbackstage Affected before 0.2.30 Fixed in 0.2.30 Patch available CNA
- plugin-catalog-unprocessed-entities-common Vendorbackstage Affected before 0.0.15 Fixed in 0.0.15 Patch available CNA
- @backstage/plugin-catalog-unprocessed-entities-common (npm) Vendor— Affected before 0.0.15 Fixed in 0.0.15 Patch available GHSA-p7g9-rp3g-mgfg
- @backstage/plugin-catalog-unprocessed-entities (npm) Vendor— Affected before 0.2.30 Fixed in 0.2.30 Patch available GHSA-p7g9-rp3g-mgfg
- @backstage/plugin-catalog-backend-module-unprocessed (npm) Vendor— Affected before 0.6.11 Fixed in 0.6.11 Patch available GHSA-p7g9-rp3g-mgfg
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:linuxfoundation:backstage\/plugin-catalog-backend-module-unprocessed:*:*:*:*:*:node.js:*:* | before 0.6.11 | Vulnerable | backstage |
| cpe:2.3:a:linuxfoundation:backstage\/plugin-catalog-unprocessed-entities:*:*:*:*:*:node.js:*:* | before 0.2.30 | Vulnerable | backstage |
| cpe:2.3:a:linuxfoundation:backstage\/plugin-catalog-unprocessed-entities-common:*:*:*:*:*:node.js:*:* | before 0.0.15 | Vulnerable | backstage |
- cpe:2.3:a:linuxfoundation:backstage\/plugin-catalog-backend-module-unprocessed:*:*:*:*:*:node.js:*:* Versions before 0.6.11 Vulnerable ·backstage
- cpe:2.3:a:linuxfoundation:backstage\/plugin-catalog-unprocessed-entities:*:*:*:*:*:node.js:*:* Versions before 0.2.30 Vulnerable ·backstage
- cpe:2.3:a:linuxfoundation:backstage\/plugin-catalog-unprocessed-entities-common:*:*:*:*:*:node.js:*:* Versions before 0.0.15 Vulnerable ·backstage
Remediation
- Fix · CNA plugin-catalog-backend-module-unprocessed (@backstage) Fixed in 0.6.11
- Fix · CNA plugin-catalog-unprocessed-entities (@backstage) Fixed in 0.2.30
- Fix · CNA plugin-catalog-unprocessed-entities-common (@backstage) Fixed in 0.0.15
- Fix · GHSA-p7g9-rp3g-mgfg @backstage/plugin-catalog-unprocessed-entities-common (npm) Fixed in 0.0.15 Advisory →
- Fix · GHSA-p7g9-rp3g-mgfg @backstage/plugin-catalog-unprocessed-entities (npm) Fixed in 0.2.30 Advisory →
- Fix · GHSA-p7g9-rp3g-mgfg @backstage/plugin-catalog-backend-module-unprocessed (npm) Fixed in 0.6.11 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Developer Hub 1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-44374
- 2026-10-03 Alias added: GHSA-p7g9-rp3g-mgfg
- 2026-10-27 Affected versions changed · Red Hat
References
Sources
- CVE-2026-44374 · CVE Program
- CVE-2026-44374 · NVD
- FIRST EPSS
- GHSA-p7g9-rp3g-mgfg · GitHub Advisory Database · CC BY 4.0
- CVE-2026-44374 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences