Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-45414— Decidim: JWT-backed authentication can be replayed across organizations

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 0.31.5之前版本和0.32.0.rc1至0.32.0.rc2之前版本存在授权问题漏洞，该漏洞源于JWT支持的API身份验证未绑定到当前主机所选组织，导致一个租户签发的JWT可被重放到另一个租户的API，从而读取participantDetails数据并访问proposal.answer变更路径。

CVSS 8.5 · High EPSS 0.45% · P37

Affected Version Matrix 2

VendorProduct Version RangeStatus
decidim decidim < 0.31.5 affected
>= 0.32.0.rc1, < 0.32.0.rc2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-45414

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Decidim: JWT-backed authentication can be replayed across organizations
Source: CVE Program / CVE List V5
Vulnerability Description
Decidim is a participatory democracy framework. Prior to 0.31.5 and in 0.32.0.rc1 before 0.32.0.rc2, JWT-backed API authentication is not bound to the organization selected by the current host, allowing a JWT issued for one tenant to be replayed against another tenant’s API to read participantDetails data and reach the proposal.answer mutation path. This issue is fixed in versions 0.31.5 and 0.32.0.rc2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Decidim 授权问题漏洞
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 0.31.5之前版本和0.32.0.rc1至0.32.0.rc2之前版本存在授权问题漏洞，该漏洞源于JWT支持的API身份验证未绑定到当前主机所选组织，导致一个租户签发的JWT可被重放到另一个租户的API，从而读取participantDetails数据并访问proposal.answer变更路径。
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 < 0.31.5 -

II. Public POCs for CVE-2026-45414

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-45414

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-45414 (2)

Vendor Advisories for CVE-2026-45414 (1)

Vendor Pages for CVE-2026-45414 (2)

Same Patch Batch · decidim · 2026-08-06 · 5 CVEs total

CVE-2026-45378 7.5 HIGH Decidim: Verification documents can be downloaded through reusable links
CVE-2026-45573 6.4 MEDIUM Decidim: Push subscriptions can be abused for server-side requests
CVE-2026-45415 6.0 MEDIUM Decidim: CSV census record endpoints improper authorization
CVE-2026-45572 4.8 MEDIUM Decidim: HTML content blocks allow stored script execution

IV. Related Vulnerabilities

Same product: decidim
Same vendor: decidim
Same weakness: CWE-639

V. Comments for CVE-2026-45414

No comments yet

Leave a comment