GHSA-2cmg-v53w-8xfp

Suggest an improvement
Source
https://github.com/advisories/GHSA-2cmg-v53w-8xfp
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-2cmg-v53w-8xfp/GHSA-2cmg-v53w-8xfp.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-2cmg-v53w-8xfp
Aliases
Published
2026-10-07T18:02:59Z
Modified
2026-10-07T18:15:12Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
Summary
Backstage: Improper repository path validation in a Scaffolder backend module
Details

Impact

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.

Patches

Patched in @backstage/plugin-scaffolder-backend-module-confluence-to-markdown version 0.3.25

Workarounds

  • Restrict execution of templates using the affected action to trusted users.
  • Remove or disable the affected action until the patched package is deployed.
Database specific
{
    "cwe_ids": [
        "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T18:02:59Z",
    "nvd_published_at": "2026-10-07T15:17:17Z",
    "severity": "HIGH"
}
References

Affected packages

npm / @backstage/plugin-scaffolder-backend-module-confluence-to-markdown

Package

Name
@backstage/plugin-scaffolder-backend-module-confluence-to-markdown
View open source insights on deps.dev
Purl
pkg:npm/%40backstage/plugin-scaffolder-backend-module-confluence-to-markdown

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.3.25

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-2cmg-v53w-8xfp/GHSA-2cmg-v53w-8xfp.json"