CVE-2026-29185
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.
Published:Mar 7, 2026
Last Modified:Apr 25, 2026
EPS:Mar 7, 2026
EPSS Score:0.00016
CVSS Score:2.7
Affected Products
Vendor
Product
Action
Vendor
Backstage
Product
Backstage
Backstage
Backstage
Vendor
Linuxfoundation
Product
Backstage\/integration
Linuxfoundation
Backstage\/integration
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
