Decidim: CSV census record endpoints improper authorization

{
  "id": "e9d6f08ec9d8c9b166d6949391796c699f4d128da8b4164ddbd6bd122aa4268a",
  "url": "https://osv.dev/vulnerability/CVE-2026-45415",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Decidim: CSV census record endpoints improper authorization",
    "summary": "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 /admin/csv_census/census_logs record-management endpoints do not enforce full administrator authorization before rendering or mutating Decidim::Verifications::CsvDatum, allowing a participant manager to create, alter, or remove census records. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.",
    "evidence": "osv:CVE-2026-45415",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-45415",
      "aliases": [
        "CVE-2026-45415",
        "GHSA-q79h-67vx-m9xg"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/decidim/decidim",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "899e5a43fa02b4709d95b63de7294289ea87cc41"
                },
                {
                  "introduced": "c3bc51462268ff734342aac28f456ac77837d4c8"
                },
                {
                  "fixed": "03d80881ac459127f0e11999c8a733cf78e78736"
                },
                {
                  "introduced": "1f92fc97fd7186639617ce1b2ca53b6cbecb1eb8"
                },
                {
                  "fixed": "f891077eb17bccc05afb1ba65c5c3073e811703c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.30.9"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.31.0.rc1"
                      },
                      {
                        "fixed": "0.31.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0.32.0.rc1"
                      },
                      {
                        "fixed": "0.32.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.32.0.rc3",
            "v0.32.0.rc2",
            "v0.30.8",
            "v0.31.4",
            "v0.32.0.rc1",
            "v0.30.7",
            "v0.31.3",
            "v0.30.6",
            "v0.31.2",
            "v0.31.1",
            "v0.30.5",
            "v0.30.4",
            "v0.31.0",
            "v0.30.3",
            "v0.31.0.rc2",
            "v0.30.2",
            "v0.31.0.rc1",
            "v0.30.1",
            "v0.30.0",
            "v0.30.0.rc3",
            "v0.30.0.rc2",
            "v0.30.0.rc1",
            "v0.20.0",
            "v0.5.0",
            "v0.4.0",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0",
            "v0.0.8.1",
            "v0.0.8",
            "v0.0.7",
            "v0.0.6",
            "v0.0.5",
            "v0.0.4",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1",
            "v0.0.1.alpha9",
            "v0.0.1.alpha8",
            "v0.0.1.alpha7",
            "v0.0.1.alpha6",
            "v0.0.1.alpha5",
            "v0.0.1.alpha4",
            "v0.0.1.alpha3",
            "v0.0.1.alpha2",
            "v0.0.1.alpha1",
            "v0.0.1.alpha"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45415.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:36.895650273Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45415.json",
        "https://github.com/decidim/decidim/security/advisories/GHSA-q79h-67vx-m9xg",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-45415",
        "https://github.com/decidim/decidim/pull/16674",
        "https://github.com/decidim/decidim/pull/16703"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45415.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-45415",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504271,
  "published_at": "2026-08-06T19:33:31.514+00:00"
}