High
Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist
Type: advisorySources: OSV
Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript expression. An unauthenticated party able to influence the value an application supplies as a query argument may cause code of their choosing to be evaluated by the database engine. This may result in unintended disclosure of stored field values, unintended selection of documents for application-initiated writes, and reduced database performance.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-93759
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 03:17 UTC · Revision 1
Source evidence
Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist
core-osv · Original sourcePublished 18 Sept 2026, 17:27 UTC
Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript expression. An unauthenticated party able to influence the value an application supplies as a query argument may cause code of their choosing to be evaluated by the database engine. This may result in unintended disclosure of stored field values, unintended selection of documents for application-initiated writes, and reduced database performance.
osv:CVE-2026-93759
Complete source record
{
"id": "f0a19cb7e88259bd19c0822cdb09b957c6dbc51d1ea3eb412ccd943880768c9d",
"url": "https://osv.dev/vulnerability/CVE-2026-93759",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist",
"summary": "Mongoid does not neutralize a string-typed query criterion supplied to its query builder, and instead passes it to the database as a server-side JavaScript expression. An unauthenticated party able to influence the value an application supplies as a query argument may cause code of their choosing to be evaluated by the database engine. This may result in unintended disclosure of stored field values, unintended selection of documents for application-initiated writes, and reduced database performance.",
"evidence": "osv:CVE-2026-93759",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-93759",
"aliases": [
"CVE-2026-93759"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mongodb/mongoid",
"type": "GIT",
"events": [
{
"introduced": "6e780948d297615520085d0df49dbe270c34430d"
},
{
"fixed": "4775b2a3ced15ba4505a0f03927ada4a9a9a9f74"
},
{
"introduced": "c95c4859ece38f2d42bf9b9984e7791532a17ff7"
},
{
"fixed": "492a97bb60c554219a52fe07db7c161c8849b5ca"
},
{
"introduced": "88f4b1ae86fab094b553a443dc5067493210c384"
},
{
"fixed": "5373073d24abd206a64ab306a0af0b95a084c4f8"
},
{
"introduced": "fc21c4106477474a655e5a4a03d829feb6997b00"
},
{
"last_affected": "fc21c4106477474a655e5a4a03d829feb6997b00"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mongodb:mongoid:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mongodb:mongoid:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.1.0"
},
{
"fixed": "8.1.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mongodb:mongoid:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0"
},
{
"fixed": "9.0.12"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mongodb:mongoid:9.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.1.0"
},
{
"last_affected": "9.1.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"9.1.0",
"v8.0.12",
"v8.1.12",
"v9.0.11",
"v9.1.0",
"v9.0.10",
"v9.0.9",
"v9.0.8",
"v9.0.7",
"v8.1.11",
"v8.0.11",
"v8.0.10",
"v8.1.10",
"v9.0.6",
"v8.0.9",
"v8.1.9",
"v9.0.5",
"v9.0.4",
"v8.1.8",
"v9.0.3",
"v8.1.7",
"v9.0.2",
"v8.1.6",
"v8.0.8",
"v9.0.1",
"v9.0.0",
"v8.1.5",
"v8.0.7",
"v8.1.4",
"v8.1.3",
"v8.0.6",
"v8.1.2",
"v8.1.1",
"v8.0.5",
"v8.1.0",
"v8.0.4",
"v8.0.3",
"v8.0.2",
"v8.0.1",
"v8.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93759.json"
}
}
],
"modified": "2026-10-28T02:30:49.318011970Z",
"provider": "osv",
"references": [
"https://jira.mongodb.org/browse/MONGOID-5993",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93759.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-93759"
],
"provider_metadata": {
"cwe_ids": [
"CWE-94"
],
"cna_assigner": "mongodb",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "9.1.0"
},
{
"last_affected": "9.1.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
]
},
{
"extracted_events": [
{
"range": [
{
"introduced": "9.0.0"
},
{
"last_affected": "9.0.11"
},
{
"introduced": "8.1.0"
},
{
"last_affected": "8.1.12"
},
{
"introduced": "8.0.0"
},
{
"last_affected": "8.0.12"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93759.json"
}
},
"related_cves": [
{
"value": "CVE-2026-93759",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 517683,
"published_at": "2026-09-18T17:27:51.644+00:00"
}