CVE-2026-45377
Decidim: Private exports can be downloaded through reusable links
CVSS Score
6.5
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, 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.
| CWE | CWE-200 CWE-284 |
| Vendor | decidim |
| Product | decidim |
| Published | Jul 31, 2026 |
| Last Updated | Jul 31, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
decidim / decidim
< 0.30.9 >= 0.31.0.rc1, < 0.31.5 >= 0.32.0.rc1, < 0.32.0