CVE-2026-110774
Blinko through 1.8.8 Private Attachment Read via /api/file Route
blinkospace blinko
CVSS
6.0MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 15 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.24%Chance of exploitation activity in the next 30 days, higher than 13% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
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.
Text from CVE List
Affected versions 1
- blinkoaffected: all versions through 1.8.8CVE List
References 4
- vulncheck.com/advisories/blinko-through-1.8.8-private-attachment-read-via-api-file-routeAdvisoryvia CVE List
- hackmd.io/@hieuPenguinnn/blinko-attachment-accountid-idorExploitvia CVE List
- github.com/blinkospace/blinko/blob/178e4b3538a21823a50ac2481e653d56cb1ffa86/server/routerExpress/file/file.ts#L148Referencevia CVE List
- github.com/blinkospace/blinkoReferencevia CVE List