{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "1.8.8"
              },
              {
                "fixed": "1.8.8"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "178e4b3538a21823a50ac2481e653d56cb1ffa86"
            }
          ],
          "repo": "https://github.com/blinkospace/blinko",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110774.json"
  },
  "details": "Blinko through 1.8.8 contains a broken access control vulnerability in the /api/file route that allows authenticated users to read other users' private attachments due to a flawed owner check. Attackers can supply another user's stored filename, following a basename plus millisecond-timestamp pattern, to download private, non-shared attachments.",
  "id": "CVE-2026-110774",
  "modified": "2026-10-17T02:30:46.265717926Z",
  "published": "2026-10-14T18:48:03.347Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110774.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110774"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-route"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/blinkospace/blinko"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idor"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Blinko through 1.8.8 Private Attachment Read via /api/file Route"
}