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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-95v5-prp4-5gv5 Backstage vulnerable to potential reading of SCM URLs using built in token
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 07 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Description 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.
Title @backstage/integration: Potential reading of SCM URLs using built in token
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 2.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-07T15:02:04.986Z

Reserved: 2026-03-04T14:44:00.714Z

Link: CVE-2026-29185

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-07T15:15:55.240

Modified: 2026-03-07T15:15:55.240

Link: CVE-2026-29185

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses