Riskcovery

CVE-2026-106506

Backstage: Improper input validation in scaffolder task list ordering

State
Published
Severity
5.3 Medium
Published
Oct 6, 2026
Updated
Oct 7, 2026
Reserved
Oct 6, 2026

Read the record on cve.org

Description

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper input validation in scaffolder task list ordering. An authenticated Backstage user with permission to create and read relevant scaffolder tasks may be able to infer confidential task data under specific conditions. Successful exploitation requires retained task secrets, visibility of a target task, knowledge of the secret structure, and repeated requests. This issue is fixed in version 4.1.0.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NGitHub_M

Weaknesses

  • CWE-202 Exposure of Sensitive Information Through Data Queries
  • CWE-203 Observable Discrepancy

Affected Products

ProductVersions
backstagebackstage
  • < 1.54.6Affected
plugin-scaffolder-backend@backstage
  • < 4.1.0Affected

References

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