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CVE-2026-45376— Decidim: Admin user search allows SQL injection through similarity-based sorting

Quick assessment

Affected
decidim decidim
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Decidim是Decidim组织开源的一个参与式民主框架,用 Ruby on Rails 编写。 Decidim 0.30.9之前版本、0.31.0至0.31.5之前版本和0.32.0.rc1至0.32.0.rc2之前版本存在SQL注入漏洞，该漏洞源于对GET /admin/organization/users搜索中参数term未进行清理，直接插入到Arel.sql的ORDER BY similarity表达式，可能导致经过身份验证的组织管理员执行盲PostgreSQL表达式并通过时间差异推断数据。

CVSS 5.5 · Medium EPSS 0.60% · P47

Affected Version Matrix 3

VendorProduct Version RangeStatus
decidim decidim < 0.30.9 affected
>= 0.31.0.rc1, < 0.31.5 affected
>= 0.32.0.rc1, < 0.32.0 affected
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I. Basic Information for CVE-2026-45376

Vulnerability Information
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Vulnerability Title
Decidim: Admin user search allows SQL injection through similarity-based sorting
Source: CVE Program / CVE List V5
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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Decidim SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Decidim是Decidim组织开源的一个参与式民主框架,用 Ruby on Rails 编写。 Decidim 0.30.9之前版本、0.31.0至0.31.5之前版本和0.32.0.rc1至0.32.0.rc2之前版本存在SQL注入漏洞，该漏洞源于对GET /admin/organization/users搜索中参数term未进行清理，直接插入到Arel.sql的ORDER BY similarity表达式，可能导致经过身份验证的组织管理员执行盲PostgreSQL表达式并通过时间差异推断数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
decidim decidim < 0.30.9 -

II. Public POCs for CVE-2026-45376

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III. Intelligence Information for CVE-2026-45376

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Vendor Advisories for CVE-2026-45376 (1)

Vendor Pages for CVE-2026-45376 (3)

Same Patch Batch · decidim · 2026-07-31 · 4 CVEs total

CVE-2026-45377 6.5 MEDIUM Decidim: Private exports can be downloaded through reusable links
CVE-2026-45086 5.4 MEDIUM Decidim: Forms admin question editor lacks authorization
CVE-2026-45330 4.9 MEDIUM Decidim: Verification admins can access supplied IDs from other organisations

IV. Related Vulnerabilities

Same product: decidim
Same vendor: decidim
Same weakness: CWE-89

V. Comments for CVE-2026-45376

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