CVE-2026-45573
Decidim: Push subscriptions can be abused for server-side requests
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-918 |
| Vendor | decidim |
| Product | decidim |
| Published | Aug 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
decidim / decidim
< 0.30.9 >= 0.31.0.rc1, < 0.31.5 >= 0.32.0.rc1, < 0.32.0