Medium severity · published Mar 12, 2026
CVE-2026-32237
@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint
6.5
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PL
plugin-scaffolder-backend · @backstage
< 3.1.5 · source: vendor
BA
Backstage/plugin-scaffolder-backend · Linuxfoundation
3.1.0 before 3.1.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32237
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32237
Patch
https://github.com/backstage/backstage/commit/3b62dd2d6bf7623ebd23e4b5a6dceb209f98dfce
Vendor Advisory
https://github.com/backstage/backstage/security/advisories/GHSA-8wq8-6859-qx77
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