# @backstage/plugin-scaffolder-backend (npm) vulnerabilities

16 known vulnerabilities (1 critical, 5 high, 8 medium, 2 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 179K
- Dependents: 2
- Registry: https://www.npmjs.com/package/@backstage/plugin-scaffolder-backend

## Advisories (16)

### [CVE-2026-106506](https://cve.now/CVE-2026-106506): Backstage: Improper input validation in scaffolder task list ordering

- Severity: Medium 5.3
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-106504](https://cve.now/CVE-2026-106504): Backstage: Sensitive information exposure in scaffolder task logs

- Severity: Medium 6.5
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-106503](https://cve.now/CVE-2026-106503): Backstage: Scaffolder action input authorization bypass

- Severity: High 8.1
- Published: Oct 6, 2026
- Affected: fixed in 3.3.1; from 3.4.0, fixed in 3.4.1; from 4.0.0, fixed in 4.0.3; from 4.0.4, fixed in 4.1.0.

### [CVE-2026-106502](https://cve.now/CVE-2026-106502): Backstage: Sensitive information may be exposed in Scaffolder task failure events

- Severity: Medium 5.3
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-106501](https://cve.now/CVE-2026-106501): Backstage: Sensitive information exposure in Scaffolder

- Severity: Critical 9.6
- Published: Oct 6, 2026
- Affected: fixed in 3.3.1; from 3.4.0, fixed in 3.4.1; from 4.0.0, fixed in 4.0.3; from 4.0.4, fixed in 4.1.0.

### [CVE-2026-106500](https://cve.now/CVE-2026-106500): Backstage: Improper task state validation in Scaffolder backend

- Severity: High 8.5
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-106499](https://cve.now/CVE-2026-106499): Backstage: Secret-derived values may be exposed in scaffolder task logs

- Severity: Medium 4.9
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-106462](https://cve.now/CVE-2026-106462): Backstage: Scaffolder credential handling may allow unintended GitHub authentication fallback

- Severity: Medium 6.4
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-106461](https://cve.now/CVE-2026-106461): Backstage: Incorrect authorization in scaffolder task listing

- Severity: Medium 4.3
- Published: Oct 6, 2026
- Affected: fixed in 4.1.0.

### [CVE-2026-32237](https://cve.now/CVE-2026-32237): @backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint

- Severity: Medium 4.4
- Published: Mar 12, 2026
- Affected: from 3.1.0, fixed in 3.1.5.

### [CVE-2026-29184](https://cve.now/CVE-2026-29184): @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass

- Severity: Low 2.0
- Published: Mar 7, 2026
- Affected: fixed in 3.1.4.

### [CVE-2026-24046](https://cve.now/CVE-2026-24046): Backstage has a Possible Symlink Path Traversal in Scaffolder Actions

- Severity: High 7.1
- Published: Jan 21, 2026
- Affected: fixed in 2.2.2; from 3.0.0, fixed in 3.0.2; from 3.1.0, fixed in 3.1.1.

### [CVE-2025-55285](https://cve.now/CVE-2025-55285): @backstage/plugin-scaffolder-backend Template Secret Leakage in Logs in Scaffolder When Using \`fetch:template\`

- Severity: Low 2.6
- Published: Aug 15, 2025
- Affected: fixed in 2.1.1.

### [CVE-2023-35926](https://cve.now/CVE-2023-35926): Insecure sandbox in Backstage Scaffolder plugin

- Severity: High 8.1
- Published: Jun 22, 2023
- Affected: fixed in 1.15.0.

### [CVE-2021-43783](https://cve.now/CVE-2021-43783): Path Traversal in @backstage/plugin-scaffolder-backend

- Severity: High 8.5
- Published: Nov 29, 2021
- Affected: fixed in 0.15.14.

### [CVE-2021-41151](https://cve.now/CVE-2021-41151): Path Traversal in @backstage/plugin-scaffolder-backend

- Severity: Medium 6.8
- Published: Oct 18, 2021
- Affected: from 0.9.4, fixed in 0.15.9.

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/packages/npm/@backstage/plugin-scaffolder-backend
Site guide for agents: https://cve.now/llms.txt
Uses NVD data; not endorsed by NVD.