Authorization Bypass Through User-Controlled Key Affecting decidim package, versions >=0.30.0.rc1, <0.30.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Feb 2026
- disclosed8 Feb 2026
- creditAntti Hukkanen
Introduced: 8 Feb 2026
NewCVE-2025-65017 (opens in a new tab)How to fix?
Upgrade decidim to version 0.30.4 or higher.
Overview
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the private_exports process. An attacker can access another user's private data exports by exploiting UUID collisions that occur when the UUID is converted to an integer, causing files to be attached to the wrong export record. This can result in unauthorized disclosure of sensitive information.
Workaround
This vulnerability can be mitigated by fully disabling the private exports feature until a patch is available.