CVE-2026-32237

@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint

At a glance

Severity: MEDIUM 4.4
EPSS: EPSS 0.25 % · percentile 17 (2026-10-27)
State: PUBLISHED
Published: 2026-03-12
Updated: 2026-03-12
Assigner: GitHub_M
NVD status: Analyzed

Description

Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 4.4	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N	GitHub_M
CVSS 3.1	MEDIUM 4.4	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-200

Advisories

GHSA-8wq8-6859-qx77 — @backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint

European references

ENISA EUVD · EUVD-2026-11675
GCVE · GCVE-0-2026-32237

Affected configurations (NVD CPE)

cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:node.js:*:* ≥ 3.1.0 < 3.1.5

Affected products

Product	Versions
@backstage · plugin-scaffolder-backend	affected < 3.1.5

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD