CVE-2026-29185 LOW

CVE-2026-29185: @backstage/integration: Potential reading of SCM URLs using built in token

Vendor Backstage
Product backstage
Weakness CWE-22 · Path traversal
Published March 7, 2026
Last update March 9, 2026
View on NVD All CVEs

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 7, 2026 CVE published
March 9, 2026 Record updated