{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.31.0"
              },
              {
                "fixed": "0.31.5"
              },
              {
                "introduced": "0.32.0.rc1"
              },
              {
                "fixed": "0.32.0.rc2"
              }
            ],
            "source": "DESCRIPTION"
          },
          "events": [
            {
              "introduced": "0795da14454a4fb342d70654bdc267d1d6d5bca5"
            },
            {
              "fixed": "03d80881ac459127f0e11999c8a733cf78e78736"
            },
            {
              "introduced": "1f92fc97fd7186639617ce1b2ca53b6cbecb1eb8"
            },
            {
              "fixed": "867174012910ba4f5f020a27444d47309fd19122"
            }
          ],
          "repo": "https://github.com/decidim/decidim",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-2g9c-vf8h-prxx"
  ],
  "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"
  },
  "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.",
  "id": "CVE-2026-45573",
  "modified": "2026-08-09T03:30:19.090040628Z",
  "published": "2026-08-06T20:14:07.078Z",
  "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"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Decidim: Push subscriptions can be abused for server-side requests"
}