CVE-2026-29185CWE-22

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

Low · published March 7, 2026

CVSS v3.1
2.7
EPSS
0%
Percentile
32.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
2.7 · LOW
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00396 · 32.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-03-07T15:02Z
EPSS history
Timeline
  • 07 MAR 15:02Z
    @backstage/integration: Potential reading of SCM URLs using built in token
    cvelistv5