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CVE-2026-106461: Backstage is an open framework for building developer portals

22
Routine
MEDIUM 4.3WATCHLISTUPGRADEUPGRADE

CVE-2026-106461 is a medium-severity flaw (CVSS 4.3) affecting backstage\/plugin-scaffolder-backend, backstage. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by incorrect authorization in scaffolder task listing. An authenticated internal user may be able to view metadata for scaffolder tasks outside the visibility intended by a deployment's permission policy. Stored task secrets are not included in the affected response, and no integrity or availability impact wa

Why this priority

  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score4.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.2% (top 92%)
CISA exploited listNo
WeaknessCWE-863
Published2026-10-06
Last modified2026-10-23
Publisher (CNA): GitHub, Inc. · Vendor: linuxfoundation

Am I affected?

Timeline

linuxfoundation backstage\/plugin-scaffolder-backend UPGRADE
Affected: < 4.1.0
Fixed in: 4.1.0
Safe to downgrade to: no unaffected older release
1. Check installed version
npm ls backstageplugin-scaffolder-backend
2. UPGRADE to 4.1.0
npm install backstageplugin-scaffolder-backend@">=4.1.0"
linuxfoundation backstage UPGRADE
Affected: < 1.54.6
Fixed in: 1.54.6
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy backstage || rpm -q backstage || backstage --version
2. UPGRADE to 1.54.6 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade backstage
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade backstage
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

npm · @backstage/plugin-scaffolder-backend · FIXED · 4.1.0 · vulnerable: < 4.1.0 · source
npm install @backstage/plugin-scaffolder-backend@">=4.1.0" npm ls @backstage/plugin-scaffolder-backend
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Related CVEs

References

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