TI-2026-24766 Aliases CVE-2026-32237 GHSA-8wq8-6859-qx77

@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint

LOW 29CWE-200Published 2026-03-12 · Updated 2026-03-12

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-200.

Summary

Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00284 20th percentileScored 2026-11-07

Fix Partial plugin-scaffolder-backend (@backstage): 3.1.5@backstage/plugin-scaffolder-backend (npm): 3.1.5Red Hat: 1 without a fix

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-scaffolder-backend	before 3.1.5	3.1.5	Patch available	CNA
—	@backstage/plugin-scaffolder-backend (npm)	3.1.0 to before 3.1.5	3.1.5	Patch available	GHSA-8wq8-6859-qx77

plugin-scaffolder-backend Vendorbackstage Affected before 3.1.5 Fixed in 3.1.5 Patch available CNA
@backstage/plugin-scaffolder-backend (npm) Vendor— Affected 3.1.0 to before 3.1.5 Fixed in 3.1.5 Patch available GHSA-8wq8-6859-qx77

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend::::::node.js::*	3.1.0 to before 3.1.5	Vulnerable	backstage

cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:node.js:*:* Versions 3.1.0 to before 3.1.5 Vulnerable ·backstage

Remediation

Fix · CNA plugin-scaffolder-backend (@backstage) Fixed in 3.1.5
Fix · GHSA-8wq8-6859-qx77 @backstage/plugin-scaffolder-backend (npm) Fixed in 3.1.5 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Self-service automation portal 2	Affected	No fix yet: Fix deferred

Not affected: 1 product

Red Hat Developer Hub 1

Timeline

2026-10-02 Threatist record created from CVE-2026-32237
2026-10-03 Alias added: GHSA-8wq8-6859-qx77
2026-10-27 Affected versions changed · Red Hat

References

Patch 1

https://github.com/backstage/backstage/commit/3b62dd2d6bf7623ebd23e4b5a6dceb209f98dfce

Advisory 2

Other 1

https://github.com/backstage/backstage

TI-2026-69075 Sensitive information exposure in Backstage Scaffolder CVSS 3.1CRITICAL 9.6
TI-2026-69074 Race condition in Backstage scaffolder backend task handling CVSS 3.1HIGH 8.5
TI-2026-69077 Authorization bypass in Backstage Scaffolder action inputs CVSS 3.1HIGH 8.1
TI-2026-23301 @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass CVSS 3.1MEDIUM 6.5
TI-2026-69078 Sensitive information exposure in Backstage scaffolder task logs CVSS 3.1MEDIUM 6.5
TI-2026-69058 Backstage scaffolder may fall back to broader integration credentials CVSS 3.1MEDIUM 6.4

See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences