NewsBlur before 14.5.0 contains a broken access control vulnerability that allows authenticated users to read private notification feeds by supplying arbitrary user_id values to the GET /social/interactions endpoint without ownership verification. Attackers can enumerate user_id values to access another user's follows, replies, and social activity without authorization.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56772.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "14.5.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"original_tag": "Android_14.5.0",
"range": [
{
"fixed": "306d6b2f5443428ef385b68309b64db6e099c0b9"
}
],
"source": "REFERENCES_TAG"
},
{
"range": [
{
"fixed": "613c60b67cc46b3f4cae1dc2dfd8d717a39bc483"
}
],
"source": "REFERENCES_COMMIT"
}
]
}