Vulnerability 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, 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/decidim/decidim/pull/16680
- https://github.com/decidim/decidim/security/advisories/GHSA-767h-63j4-5226
- https://github.com/decidim/decidim/security/advisories/GHSA-767h-63j4-5226
FAQ
What is CVE-2026-45377?
CVE-2026-45377 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2026-45377?
CVE-2026-45377 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45377?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.