How severe is CVE-2026-106462?

CVE-2026-106462 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-106462 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-106462?

CVE-2026-106462 primarily affects Linuxfoundation Backstage/plugin-scaffolder-backend. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-106462?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-106462 published?

CVE-2026-106462 was published on 2026-10-06 and last updated on 2026-10-22.

CVE-2026-106462

CVE-2026-106462 is a medium-severity vulnerability in Linuxfoundation Backstage/plugin-scaffolder-backend with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-441.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-441
Affected product: Linuxfoundation Backstage/plugin-scaffolder-backend
Published: 2026-10-06
Last modified: 2026-10-22

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.

Frequently asked questions

What is CVE-2026-106462?: 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.
How severe is CVE-2026-106462?: CVE-2026-106462 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-106462 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-106462?: CVE-2026-106462 primarily affects Linuxfoundation Backstage/plugin-scaffolder-backend. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-106462?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-106462 published?: CVE-2026-106462 was published on 2026-10-06 and last updated on 2026-10-22.

References

Affected products (7)

cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-azure:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-bitbucket-cloud:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-bitbucket-server:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-github:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-gitlab:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

More vulnerabilities in Linuxfoundation Backstage/plugin-scaffolder-backend

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CVE-2026-106504 — Medium (CVSS 6.5): Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend…
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CVE-2026-106502 — Medium (CVSS 5.3): Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend…

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