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CVE-2026-106560

medium

Backstage is an open framework for building developer portals.

Vendor / product: Linuxfoundation — backstage\/plugin-scaffolder-backend-module-confluence-to-markdown

Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process. This issue is fixed in version 0.3.25.

CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-10-07 15:17
Modified: 2026-10-16 15:05
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 06:58 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linuxfoundation / backstage\/plugin-scaffolder-backend-module-confluence-to-markdown <0.3.25
linuxfoundation / backstage <1.54.6

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/backstage/backstage/security/advisories/GHSA-2cmg-v53w-8xfp
Patch / mitigation: https://github.com/backstage/backstage/commit/5f0000c1d0af05571e357926b3fa33a453337ff0
Patch / mitigation: https://github.com/backstage/backstage/releases/tag/v1.54.6
Patch / mitigation: https://github.com/backstage/backstage/security/advisories/GHSA-2cmg-v53w-8xfp

References

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗

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