What is GHSA-g2v8-7jhw-pp8p?

GHSA-g2v8-7jhw-pp8p is a security advisory published by GitHub Security Advisories with Critical severity. Backstage: Sensitive information exposure in Scaffolder

Which CVE IDs does GHSA-g2v8-7jhw-pp8p cover?

GHSA-g2v8-7jhw-pp8p covers the following CVE IDs: CVE-2026-106501. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-g2v8-7jhw-pp8p?

GHSA-g2v8-7jhw-pp8p has a CVSS v3 base score of 9.6, published by GitHub Security Advisories.

Which products are affected by GHSA-g2v8-7jhw-pp8p?

GHSA-g2v8-7jhw-pp8p affects 4 products, including: npm/@backstage/plugin-scaffolder-backend:\u003c 3.3.1; npm/@backstage/plugin-scaffolder-backend:\u003e= 3.4.0, \u003c 3.4.1; npm/@backstage/plugin-scaffolder-backend:\u003e= 4.0.0, \u003c 4.0.3; npm/@backstage/plugin-scaffolder-backend:\u003e= 4.0.4, \u003c 4.1.0.

GHSA-g2v8-7jhw-pp8pCriticalCVSS 9.6

Backstage: Sensitive information exposure in Scaffolder

Vendor

GitHub Security Advisories

Published

October 7, 2026

Last Modified

October 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-106501 →

📋 Description

Impact

An authenticated Backstage user who can read another user's Scaffolder task may receive internal execution data. In deployments where that data contains credentials for an external service, this may permit disclosure and unauthorized changes in that external service.

Patches

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

Workarounds

Configure scaffolder.task.read with the isTaskOwner condition so users can only read tasks they created.
Restrict affected integrations and workflows to trusted operators until an upgrade is available.

🎯 Affected products4

npm/@backstage/plugin-scaffolder-backend:< 3.3.1
npm/@backstage/plugin-scaffolder-backend:>= 3.4.0, < 3.4.1
npm/@backstage/plugin-scaffolder-backend:>= 4.0.0, < 4.0.3
npm/@backstage/plugin-scaffolder-backend:>= 4.0.4, < 4.1.0