{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.0.322"
              },
              {
                "fixed": "0.0.322"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "029625e322fbe6958e63e41a49f444f278f2da6c"
            }
          ],
          "repo": "https://github.com/quivrhq/quivr",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82284.json"
  },
  "details": "Quivr versions through 0.0.322 fail to validate chat ownership in the GET /chat/{chat_id}/history, DELETE /chat/{chat_id}, and POST /chat/{chat_id}/question/answer endpoints. Authenticated attackers can read other users' conversation histories including private knowledge base content, delete arbitrary chats, and inject fabricated messages into other users' conversations.",
  "id": "CVE-2026-82284",
  "modified": "2026-08-30T03:30:33.080571066Z",
  "published": "2026-08-28T16:19:03.152Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82284.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82284"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/quivr-chat-endpoints-missing-ownership-validation"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/QuivrHQ/quivr/issues/3697"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/QuivrHQ/quivr"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/QuivrHQ/quivr/blob/v0.0.322/backend/api/quivr_api/modules/chat/controller/chat_routes.py"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Quivr Chat Endpoints Missing Ownership Validation"
}