Medium
pymongo — security advisory
Deserialization of untrusted data in the command monitoring support of the MongoDB PHP Driver can cause class names embedded in document content to be honored when the driver builds monitoring event objects. When an application registers a command monitoring subscriber and includes untrusted data in a database operation, an unauthenticated party who controls that data may cause an application class implementing the driver's persistable interface to be instantiated and its unserialization method invoked with the supplied data. The resulting impact depends on the classes available in the application.
- Products
- pymongo
- Affected versions
- 2.6-1, 2.6.2-1, 2.6.3-1, 2.6.3-1build1, 3.0.3-1, 3.10.1-0ubuntu2, 3.10.1-0ubuntu2.1, 3.11.0-1build2, 3.11.0-1build3, 3.11.0-1build4, 3.11.0-1build6, 3.11.0-1build7, 3.11.0-1build8, 3.11.0-1ubuntu0.22.04.1, 3.11.0-1ubuntu0.24.04.1, 3.2-1, 3.2-1build1, 3.2-1ubuntu0.1~esm1, 3.4.0-1build2, 3.6.1+dfsg1-1, 3.6.1+dfsg1-1ubuntu0.1~esm1, 3.7.1-1.1, 3.7.1-1.1build1, 4.10.1-6, 4.15.3-1, 4.15.3-2, 4.15.5-1, 4.16.0-1, 4.16.0-1build1, 4.17.0-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-96745
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:34 UTC · Revision 1
Source evidence
Deserialization of untrusted data in the command monitoring support of the MongoDB PHP Driver can cause class names embedded in document content to be honored when the driver builds monitoring event objects. When an application registers a command monitoring subscriber and includes untrusted data in a database operation, an unauthenticated party who controls that data may cause an application class implementing the driver's persistable interface to be instantiated and its unserialization method invoked with the supplied data. The resulting impact depends on the classes available in the application.
osv:UBUNTU-CVE-2026-96745
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
pymongo
Fixed versions: Not specified
Complete source record
{
"id": "1faaa46e3aaaf16617422b3267b7df3a05e7a848a9f64fc1da10e8df235ef20a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-96745",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-96745",
"summary": "Deserialization of untrusted data in the command monitoring support of the MongoDB PHP Driver can cause class names embedded in document content to be honored when the driver builds monitoring event objects. When an application registers a command monitoring subscriber and includes untrusted data in a database operation, an unauthenticated party who controls that data may cause an application class implementing the driver's persistable interface to be instantiated and its unserialization method invoked with the supplied data. The resulting impact depends on the classes available in the application.",
"evidence": "osv:UBUNTU-CVE-2026-96745",
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"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-96745",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
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],
"modified": "2026-10-17T13:01:19.717563369Z",
"provider": "osv",
"upstream": [
"CVE-2026-96745"
],
"references": [
"https://ubuntu.com/security/CVE-2026-96745",
"https://www.cve.org/CVERecord?id=CVE-2026-96745"
]
},
"related_cves": [
{
"value": "CVE-2026-96745",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 361714,
"published_at": "2026-09-24T16:17:00+00:00"
}