SQL Injection in Decidim

CVE-2026-45376

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.

Vulnerability class: SQL Injection

EPSS: 0.003 (27.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L.

Affected products

  • Decidim — versions < 0.30.9, >= 0.31.0.rc1, < 0.31.5, >= 0.32.0.rc1, < 0.32.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-45376?
CVE-2026-45376 is a medium-severity vulnerability in Decidim, classified under SQL Injection. CVSS score: 5.5/10. Published 2026-07-31.
How severe is CVE-2026-45376?
Medium severity. CVSS v3 base score is 5.5 out of 10.