CVE-2026-106502

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose sensitive information in Scaffolder task failure events. Under specific template and failure conditions, an authenticated user may retrieve backend-managed credentials used during task execution from affected task events. This issue is fixed in version 4.1.0.

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-25)

CWE

CWE-532

Published

2026-10-06

Modified

2026-10-13

Record from

the NVD, synced 2026-10-19

Affected

• linuxfoundation:backstage
• linuxfoundation:backstage\/plugin-scaffolder-backend

Packages (OSV)

References

• https://github.com/backstage/backstage/commit/3f1e869708f002fb9838624b7379deb251691b47
• https://github.com/backstage/backstage/releases/tag/v1.54.6
• https://github.com/backstage/backstage/security/advisories/GHSA-95p4-vv4g-jxxm

Check your stackJSON