CVE-2026-45378

Source
https://cve.org/CVERecord?id=CVE-2026-45378
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45378.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45378
Aliases
Published
2026-08-06T20:15:40Z
Modified
2026-09-10T03:30:22Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Decidim: Verification documents can be downloaded through reusable links
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, the identity-document verification admin UI embeds verification_attachment blobs through reusable signed Active Storage disk URLs, allowing anyone who obtains a URL to download the scanned document without an authenticated Decidim session until the signature expires. Verification-document images are rendered with variant_url(...), which produces signed /rails/active_storage/disk/... links instead of routing the file through an authorization-checking controller. Because Decidim configures Active Storage service URLs to remain valid for seven days, the URL itself becomes the credential for that period. The affected files are verification_attachment blobs on Decidim::Authorization, and the admin review pages embed those signed URLs directly into the HTML for pending and confirmation views. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45378.json"
}
References

Affected packages

Git / github.com/decidim/decidim

Affected ranges

Type
GIT
Repo
https://github.com/decidim/decidim
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "introduced": "0.31.0"
        },
        {
            "fixed": "0.31.5"
        },
        {
            "introduced": "0.32.0.rc1"
        },
        {
            "fixed": "0.32.0.rc2"
        }
    ],
    "source": "DESCRIPTION"
}

Affected versions

v0.*
v0.31.0
v0.31.1
v0.31.2
v0.31.3
v0.31.4
v0.32.0.rc1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45378.json"