{"id":"CVE-2026-110774","title":"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","summary":"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 f…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-639"],"published":"2026-10-14","updated":"2026-10-14","sourceUpdated":"2026-10-14T19:17:13.650","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110774","references":[{"url":"https://github.com/blinkospace/blinko","label":"disclosure@vulncheck.com"},{"url":"https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idor","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-route","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-14T19:49:57.613Z","slug":"CVE-2026-110774","body":"## Overview\n\nBlinko 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}