GHSA-R3V7-5X4C-C69Q高危已审查

Decidim: JWT-backed authentication can be replayed across organizations

OSV 1.4.0 · github-reviewed · 修改于 2026-07-14 01:16

发布时间

2026-07-14 01:16

GitHub 审查时间

2026-07-14 01:16

NVD 发布时间

—

源文件

advisories/github-reviewed/2026/07/GHSA-r3v7-5x4c-c69q/GHSA-r3v7-5x4c-c69q.json

公告说明

Description

A JWT issued to an Org 1 account is accepted on the Org 2 API and can read the admin-only GraphQL participantDetails field for an Org 2 participant. The same trust-boundary problem also affects API-user authentication: an Org 1 API user can use a JWT on the Org 1 host and replay that JWT to the Org 2 API to read Org 2 participant personal data and reach Org 2's proposal.answer mutation path.

Technical description

The current host selects the Decidim organization context, but JWT-backed API authentication is not sufficiently bound to that host organization. As a result, the API can process a request in Org 2's context while still trusting an authenticated principal from Org 1.

Reproduction steps:

Use an API key provided by the system administrator that is assigned to organization 1 to create the JWT token or get the JWT token shown in the response when logged in as the organization admin.

When using this JWT token it is possible to retrieve details from other organisations. Notice the change of the host header in the request below to that of another tenant org2.localhost:3001

Note that using a participant-generated JWT did not allow showing these results.

Impact

A JWT issued for one organization can be replayed successfully against another organization's API and used to retrieve sensitive details from that organization.

Patches

See https://github.com/decidim/decidim/pull/16673 and https://github.com/decidim/decidim/pull/16756

Workarounds

Disable JWT credentials on system panel (/system)

References

OWASP A01:2021 Broken Access Control

Credits

This issue was discovered in a security audit organized by the and made by against Decidim financed by .

标识信息

别名 / CVE

CVE-2026-45414

CWE

CWE-287

软件生态

RubyGems

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

原始 OSV JSON

{
  "id": "GHSA-r3v7-5x4c-c69q",
  "aliases": [
    "CVE-2026-45414"
  ],
  "details": "## Description\n\nA JWT issued to an Org 1 account is accepted on the Org 2 API and can read the admin-only GraphQL `participantDetails` field for an Org 2 participant. The same trust-boundary problem also affects API-user authentication: an Org 1 API user can use a JWT on the Org 1 host and replay that JWT to the Org 2 API to read Org 2 participant personal data and reach Org 2's `proposal.answer` mutation path.\n\n##  Technical description\n\nThe current host selects the Decidim organization context, but JWT-backed API authentication is not sufficiently bound to\nthat host organization. As a result, the API can process a request in Org 2's context while still trusting an authenticated\nprincipal from Org 1.\n\nReproduction steps:\n\n1. Use an API key provided by the system administrator that is assigned to organization 1 to create the JWT token or\nget the JWT token shown in the response when logged in as the organization admin.\n\n<img width=\"1080\" height=\"1119\" alt=\"decidim-jwt-01\" src=\"https://github.com/user-attachments/assets/6195a250-faef-41d5-8f64-4d77d4077e96\" />\n\n\n2. When using this JWT token it is possible to retrieve details from other organisations. Notice the change of the host header in the request below to that of another tenant `org2.localhost:3001`\n \n<img width=\"1085\" height=\"1047\" alt=\"decidim-jwt-02\" src=\"https://github.com/user-attachments/assets/d40825e3-0d36-44f3-bede-86d247bbe6d0\" />\n\nNote that using a participant-generated JWT did not allow showing these results.\n\n### Impact\n\nA JWT issued for one organization can be replayed successfully against another organization's API and used to retrieve sensitive details from that organization.\n\n### Patches\n\nSee https://github.com/decidim/decidim/pull/16673 and https://github.com/decidim/decidim/pull/16756\n\n### Workarounds\n\nDisable JWT credentials on system panel (`/system`) \n\n### References\n\nOWASP A01:2021 Broken Access Control\n\n### Credits\n\nThis issue was discovered in a security audit organized by the [Decidim Association](https://decidim.org) and made by [Radically Open Security](https://www.radicallyopensecurity.com/) against Decidim financed by [NGI](https://ngi.eu/).",
  "summary": "Decidim: JWT-backed authentication can be replayed across organizations",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.31.5"
            }
          ]
        }
      ],
      "package": {
        "name": "decidim",
        "ecosystem": "RubyGems"
      }
    },
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0.32.0.rc1"
            },
            {
              "fixed": "0.32.0"
            }
          ]
        }
      ],
      "package": {
        "name": "decidim",
        "ecosystem": "RubyGems"
      }
    }
  ],
  "modified": "2026-07-13T17:16:57Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N"
    }
  ],
  "published": "2026-07-13T17:16:56Z",
  "references": [
    {
      "url": "https://github.com/decidim/decidim/security/advisories/GHSA-r3v7-5x4c-c69q",
      "type": "WEB"
    },
    {
      "url": "https://github.com/decidim/decidim/pull/16673",
      "type": "WEB"
    },
    {
      "url": "https://github.com/decidim/decidim/pull/16756",
      "type": "WEB"
    },
    {
      "url": "https://github.com/decidim/decidim",
      "type": "PACKAGE"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "nvd_published_at": null,
    "github_reviewed_at": "2026-07-13T17:16:56Z"
  }
}