CVE-2026-110774
MEDIUMCVSS 5.3Description
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.
Timeline
Published:October 14th, 2026 7:17 PM
Last modified:October 15th, 2026 3:17 PM
CVSS Scoring
CVSS v3: 5.3 (MEDIUM)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- https://github.com/blinkospace/blinko
- https://github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148
- https://hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idor
- https://www.vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-route
Source: NIST NVD · Data may lag official sources by up to one minute