CVE-2026-45376

Decidim: Admin user search allows SQL injection through similarity-based sorting

State: Published
Severity: 5.5 Medium
Published: Jul 31, 2026
Updated: Aug 3, 2026
Reserved: May 12, 2026

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 GET /admin/organization/users search interpolates params[:term] into raw Arel.sql ORDER BY similarity expressions before sanitization, allowing an authenticated organization administrator to execute blind PostgreSQL expressions and infer data through timing differences. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L	GitHub_M

Weaknesses

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected Products

Product	Versions
decidimdecidim	< 0.30.9Affected >= 0.31.0.rc1, < 0.31.5Affected >= 0.32.0.rc1, < 0.32.0Affected

References

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