cvedb.io
CVE-2026-40870
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-04-21T20:17:00.367 · Last modified 2026-06-17T10:45:47.900

Summary

Decidim is a participatory democracy framework. Starting in version 0.0.1 and prior to versions 0.30.5 and 0.31.1, the root level `commentable` field in the API allows access to all commentable resources within the platform, without any permission checks. All Decidim instances are impacted that have not secured the `/api` endpoint. The `/api` endpoint is publicly available with the default configuration. Versions 0.30.5 and 0.31.1 fix the issue. As a workaround, limit the scope to only authenticated users by limiting access to the `/api` endpoint. This would require custom code or installing the 3rd party module `Decidim::Apiauth`. With custom code, the `/api` endpoint can be limited to only authenticated users. The same configuration can be also used without the `allow` statements to disa

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.