Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.
{
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31872.json",
"cwe_ids": [
"CWE-284"
],
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": ">= 9.0.0 < 9.6.0-alpha.6"
},
{
"last_affected": ">= 9.0.0 < 9.6.0-alpha.6"
}
]
}
]
}{
"cpe": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*",
"source": [
"CPE_RANGE",
"REFERENCES"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "8.6.32"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.6.0"
}
]
}