CVE-2026-106560CWE-22path-traversal

CVE-2026-106560

High · published October 7, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
23.1
In the wild
Unconfirmed
What it is

Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process. This issue is fixed in version 0.3.25.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00314 · 23.1th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-07T19:17Z
Affected products (2)
ProductVersionsFixed in
linuxfoundation/backstage\/plugin-scaffolder-backend-module-confluence-to-markdown< 0.3.250.3.25
linuxfoundation/backstage< 1.54.61.54.6
References (3)
EPSS history
Timeline
  • 09 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 07 OCT 14:50Z
    Backstage: Improper repository path validation in a Scaffolder backend module
    cvelistv5