{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45378", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-12T00:51:29.086Z", "datePublished": "2026-08-06T20:15:40.126Z", "dateUpdated": "2026-08-06T20:15:40.126Z"}, "containers": {"cna": {"title": "Decidim: Verification documents can be downloaded through reusable links", "problemTypes": [{"descriptions": [{"cweId": "CWE-200", "lang": "en", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/decidim/decidim/security/advisories/GHSA-3mvf-82qp-8qh5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/decidim/decidim/security/advisories/GHSA-3mvf-82qp-8qh5"}], "affected": [{"vendor": "decidim", "product": "decidim", "versions": [{"version": "< 0.30.9", "status": "affected"}, {"version": ">= 0.31.0.rc1, < 0.31.5", "status": "affected"}, {"version": ">= 0.32.0.rc1, < 0.32.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-06T20:15:40.126Z"}, "descriptions": [{"lang": "en", "value": "Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, the identity-document verification admin UI embeds verification_attachment blobs through reusable signed Active Storage disk URLs, allowing anyone who obtains a URL to download the scanned document without an authenticated Decidim session until the signature expires. Verification-document images are rendered with variant_url(...), which produces signed /rails/active_storage/disk/... links instead of routing the file through an authorization-checking controller. Because Decidim configures Active Storage service URLs to remain valid for seven days, the URL itself becomes the credential for that period. The affected files are verification_attachment blobs on Decidim::Authorization, and the admin review pages embed those signed URLs directly into the HTML for pending and confirmation views. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2."}], "source": {"advisory": "GHSA-3mvf-82qp-8qh5", "discovery": "UNKNOWN"}}}}

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