TI-2026-23302 Aliases CVE-2026-29185 GHSA-95v5-prp4-5gv5

@backstage/integration: Potential reading of SCM URLs using built in token

LOW 14CWE-22Published 2026-03-07 · Updated 2026-03-09

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: Partial Red Hat: 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-22 and the CVSS impact.

Summary

Backstage is an open framework for building developer portals. Prior to version 1.20.1, a vulnerability in the SCM URL parsing used by Backstage integrations allowed path traversal sequences in encoded form to be included in file paths. When these URLs were processed by integration functions that construct API URLs, the traversal segments could redirect requests to unintended SCM provider API endpoints using the configured server-side integration credentials. This issue has been patched in version 1.20.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00396 34th percentileScored 2026-11-07

Fix Partial backstage (backstage): 1.20.1@backstage/integration (npm): 1.20.1Red Hat: 2 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	backstage	before 1.20.1	1.20.1	Patch available	CNA
—	@backstage/integration (npm)	before 1.20.1	1.20.1	Patch available	GHSA-95v5-prp4-5gv5

backstage Vendorbackstage Affected before 1.20.1 Fixed in 1.20.1 Patch available CNA
@backstage/integration (npm) Vendor— Affected before 1.20.1 Fixed in 1.20.1 Patch available GHSA-95v5-prp4-5gv5

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:linuxfoundation:backstage\/integration::::::node.js::*	before 1.20.1	Vulnerable	backstage

cpe:2.3:a:linuxfoundation:backstage\/integration:*:*:*:*:*:node.js:*:* Versions before 1.20.1 Vulnerable ·backstage

Remediation

Fix · CNA backstage (backstage) Fixed in 1.20.1
Fix · GHSA-95v5-prp4-5gv5 @backstage/integration (npm) Fixed in 1.20.1 Advisory →

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Developer Hub 1	Affected	No fix yet: Fix deferred
Self-service automation portal 2	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2026-29185
2026-10-03 Alias added: GHSA-95v5-prp4-5gv5
2026-10-27 Affected versions changed · Red Hat

References

Sources

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