CVE-2026-106462

medium

Description

Backstage is an open framework for building developer portals. Prior to 1.54.6, scaffolder source-control actions may not consistently enforce intended credential boundaries. An authenticated user could cause an affected action to fall back to broader integration credentials and perform operations with more access than intended. This issue is fixed in 1.54.6 when operators also enable scaffolder.requireScmUserCredentials after upgrading.

References

https://github.com/backstage/backstage/security/advisories/GHSA-29gx-h2m3-xw44

https://github.com/backstage/backstage/releases/tag/v1.54.6

https://github.com/backstage/backstage/commit/6fb2a41ea47da37eafe5ea744050ef90be6820c0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-93999

Details

Source: Mitre, NVD

Published: 2026-10-06

Updated: 2026-10-07

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00171