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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110774.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.8.8"
},
{
"fixed": "1.8.8"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}