{"id":"CVE-2026-45573","summary":"Decidim: Push subscriptions can be abused for server-side requests","details":"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.","aliases":["GHSA-2g9c-vf8h-prxx"],"modified":"2026-08-09T03:30:19.090040628Z","published":"2026-08-06T20:14:07.078Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45573.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45573.json"},{"type":"ADVISORY","url":"https://github.com/decidim/decidim/security/advisories/GHSA-2g9c-vf8h-prxx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45573"},{"type":"FIX","url":"https://github.com/decidim/decidim/pull/16714"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/decidim/decidim","events":[{"introduced":"0795da14454a4fb342d70654bdc267d1d6d5bca5"},{"fixed":"03d80881ac459127f0e11999c8a733cf78e78736"},{"introduced":"1f92fc97fd7186639617ce1b2ca53b6cbecb1eb8"},{"fixed":"867174012910ba4f5f020a27444d47309fd19122"}],"database_specific":{"source":"DESCRIPTION","extracted_events":[{"introduced":"0.31.0"},{"fixed":"0.31.5"},{"introduced":"0.32.0.rc1"},{"fixed":"0.32.0.rc2"}]}}],"versions":["v0.31.4","v0.32.0.rc1","v0.31.3","v0.31.2","v0.31.1","v0.31.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45573.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"}]}