{"cve":"CVE-2026-45377","nvd":{"published":"2026-07-31T23:17:24.520","modified":"2026-09-08T20:51:43.490","status":"Deferred","description":"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 normal download_your_data flow requires the requester to be logged in as the export owner, but the resulting Active Storage blob redirect URL can be replayed without authentication by anyone who obtains it. This is because Decidim::DownloadYourDataController#download_file authenticates the export owner but redirects to a signed Active Storage blob URL that is no longer bound to the owner session. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-200","CWE-284"],"references":["https://github.com/decidim/decidim/pull/16680","https://github.com/decidim/decidim/security/advisories/GHSA-767h-63j4-5226","https://github.com/decidim/decidim/security/advisories/GHSA-767h-63j4-5226"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:10.050265369+00:00"},"epss":{"cve":"CVE-2026-45377","score":0.00453,"percentile":0.39379,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-767h-63j4-5226","url":"https://osv.dev/vulnerability/GHSA-767h-63j4-5226","summary":"Decidim: Private exports can be downloaded through reusable links","modified":"2026-07-13T17:26:43.773933Z","packages":[{"ecosystem":"RubyGems","name":"decidim-core","purl":"pkg:gem/decidim-core","ranges":["<0.30.9"],"fixed":["0.30.9"]},{"ecosystem":"RubyGems","name":"decidim-core","purl":"pkg:gem/decidim-core","ranges":[">=0.31.0.rc1 <0.31.5"],"fixed":["0.31.5"]},{"ecosystem":"RubyGems","name":"decidim-core","purl":"pkg:gem/decidim-core","ranges":[">=0.32.0.rc1 <0.32.0"],"fixed":["0.32.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}