{"cve":"CVE-2026-45573","nvd":{"published":"2026-08-06T22:17:07.550","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, when VAPID delivery is enabled, the notification subscription flow stores a client-supplied push endpoint without validating that it belongs to an approved push service, and SendPushNotification later passes that endpoint to WebPush.payload_send, allowing an authenticated user to create stored, mostly blind server-side requests to arbitrary reachable HTTPS endpoints. 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:L/UI:N/S:C/C:L/I:L/A:N","score":6.4},"cwes":["CWE-918"],"references":["https://github.com/decidim/decidim/pull/16714","https://github.com/decidim/decidim/security/advisories/GHSA-2g9c-vf8h-prxx"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:10.050265369+00:00"},"epss":{"cve":"CVE-2026-45573","score":0.0026,"percentile":0.17789,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-2g9c-vf8h-prxx","url":"https://osv.dev/vulnerability/GHSA-2g9c-vf8h-prxx","summary":"Decidim: Push subscriptions can be abused for server-side requests","modified":"2026-07-13T17:41:46.723830Z","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."]}