GHSA-vwp5-f99x-x3rq

Source

https://github.com/advisories/GHSA-vwp5-f99x-x3rq

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vwp5-f99x-x3rq/GHSA-vwp5-f99x-x3rq.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-vwp5-f99x-x3rq

Aliases

CVE-2026-106506

Published

2026-10-07T16:24:12Z

Modified

2026-10-07T16:30:05Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Summary

Backstage has improper input validation in scaffolder task list ordering

Details

Impact

An authenticated Backstage user with permission to create and read relevant scaffolder tasks may be able to infer confidential task data under specific conditions. Successful exploitation requires retained task secrets, visibility of a target task, knowledge of the secret structure, and repeated requests.

Patches

Patched in @backstage/plugin-scaffolder-backend version 4.1.0

Workarounds

At the gateway or reverse proxy, reject task-list requests that specify custom ordering, or allow ordering only by created_at, status, and created_by.
Restrict scaffolder task creation and task read permissions to trusted users, preferably using owner-based task-read conditions.
Disabling task recovery can reduce secret retention after a task is claimed, but it does not protect secrets in queued tasks and should not be treated as complete mitigation.

Database specific

{
    "cwe_ids": [
        "CWE-202",
        "CWE-203"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-07T16:24:12Z",
    "nvd_published_at": "2026-10-06T22:17:05Z",
    "severity": "MODERATE"
}

References

Affected packages

npm / @backstage/plugin-scaffolder-backend

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

4.1.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vwp5-f99x-x3rq/GHSA-vwp5-f99x-x3rq.json"