{
  "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-2026-82280.json"
  },
  "details": "Quivr through 0.0.322 fails to validate ownership in prompt endpoints, allowing authenticated users to modify any prompt by identifier. Attackers with read-only access to shared brains can read exposed prompt identifiers and overwrite system prompts affecting all brain users.",
  "id": "CVE-2026-82280",
  "modified": "2026-09-02T03:30:17.062008221Z",
  "published": "2026-08-28T16:19:00.389Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82280.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-82280"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/quivr-prompt-endpoints-missing-ownership-validation"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/QuivrHQ/quivr/issues/3698"
    },
    {
      "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/prompt/controller/prompt_routes.py"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/The-Vibe-Company/Quivr/issues/3698"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Quivr Prompt Endpoints Missing Ownership Validation"
}