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CERTFR-2026-AVI-1386
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans les produits MongoDB. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| MongoDB | libmongocrypt | libmmongocrypt versions antérieures à 1.21.1 | ||
| MongoDB | C Driver | C Driver versions 2.5.x antérieures à 2.5.7 | ||
| MongoDB | C Driver | C Driver versions antérieures à 1.30.14 | ||
| MongoDB | C# Driver | C# Driver versions antérieures à 3.13.0 | ||
| MongoDB | Compass | Compass versions antérieures à 1.53.1 |
References
| Title | Publication Time | Tags | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "libmmongocrypt versions ant\u00e9rieures \u00e0 1.21.1",
"product": {
"name": "libmongocrypt",
"vendor": {
"name": "MongoDB",
"scada": false
}
}
},
{
"description": "C Driver versions 2.5.x ant\u00e9rieures \u00e0 2.5.7",
"product": {
"name": "C Driver",
"vendor": {
"name": "MongoDB",
"scada": false
}
}
},
{
"description": "C Driver versions ant\u00e9rieures \u00e0 1.30.14",
"product": {
"name": "C Driver",
"vendor": {
"name": "MongoDB",
"scada": false
}
}
},
{
"description": "C# Driver versions ant\u00e9rieures \u00e0 3.13.0",
"product": {
"name": "C# Driver",
"vendor": {
"name": "MongoDB",
"scada": false
}
}
},
{
"description": "Compass versions ant\u00e9rieures \u00e0 1.53.1",
"product": {
"name": "Compass",
"vendor": {
"name": "MongoDB",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-114645",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114645"
},
{
"name": "CVE-2026-114652",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114652"
},
{
"name": "CVE-2026-114649",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114649"
},
{
"name": "CVE-2026-114646",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114646"
},
{
"name": "CVE-2026-114648",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114648"
},
{
"name": "CVE-2026-114654",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114654"
},
{
"name": "CVE-2026-114653",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114653"
},
{
"name": "CVE-2026-114643",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114643"
},
{
"name": "CVE-2026-114647",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114647"
},
{
"name": "CVE-2026-114650",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114650"
},
{
"name": "CVE-2026-114644",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114644"
},
{
"name": "CVE-2026-115929",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-115929"
},
{
"name": "CVE-2026-114651",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114651"
},
{
"name": "CVE-2026-114655",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-114655"
}
],
"initial_release_date": "2026-10-26T00:00:00",
"last_revision_date": "2026-10-26T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1386",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-10-26T00:00:00.000000"
}
],
"risks": [
{
"description": "Injection de requ\u00eates ill\u00e9gitimes par rebond (CSRF)"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Injection SQL (SQLi)"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits MongoDB. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits MongoDB",
"vendor_advisories": [
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6162",
"url": "https://jira.mongodb.org/browse/CSHARP-6162"
},
{
"published_at": "2026-10-24",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB v1.53.1",
"url": "https://github.com/mongodb-js/compass/releases/tag/v1.53.1"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6186",
"url": "https://jira.mongodb.org/browse/CSHARP-6186"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6166",
"url": "https://jira.mongodb.org/browse/CSHARP-6166"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB MONGOCRYPT-963",
"url": "https://jira.mongodb.org/browse/MONGOCRYPT-963"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6174",
"url": "https://jira.mongodb.org/browse/CSHARP-6174"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6157",
"url": "https://jira.mongodb.org/browse/CSHARP-6157"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6181",
"url": "https://jira.mongodb.org/browse/CSHARP-6181"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6184",
"url": "https://jira.mongodb.org/browse/CSHARP-6184"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6180",
"url": "https://jira.mongodb.org/browse/CSHARP-6180"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CDRIVER-6421",
"url": "https://jira.mongodb.org/browse/CDRIVER-6421"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6170",
"url": "https://jira.mongodb.org/browse/CSHARP-6170"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6179",
"url": "https://jira.mongodb.org/browse/CSHARP-6179"
},
{
"published_at": "2026-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 MongoDB CSHARP-6168",
"url": "https://jira.mongodb.org/browse/CSHARP-6168"
}
]
}
CVE-2026-114655 (GCVE-0-2026-114655)
Vulnerability from cvelistv5
Published
2026-10-22 19:14
Modified
2026-10-22 20:38
Severity ?
6.0 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Summary
libmongocrypt builds requests to external key management services (AWS, Azure and GCP) by inserting values from key vault documents, KMS provider configuration and KMS responses into request lines, headers and signed request bodies without validating or encoding them for each context. A user with write access to the key vault collection can alter the structure of these requests, including adding members to request bodies and token claims that the library then signs with the application's credentials. This may result in key management operations being performed with parameters the application did not intend.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MongoDB | libmongocrypt |
Version: 1.0.0 ≤ |
{
"containers": {
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"affected": [
{
"defaultStatus": "unaffected",
"product": "libmongocrypt",
"vendor": "MongoDB",
"versions": [
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"status": "affected",
"version": "1.0.0",
"versionType": "semver"
}
]
}
],
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"supportingMedia": [
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}
],
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}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
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"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
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},
"format": "CVSS",
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{
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"baseScore": 5.9,
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"confidentialityImpact": "HIGH",
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"version": "3.1"
},
"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
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],
"problemTypes": [
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"descriptions": [
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"description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T20:38:26.441Z",
"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"shortName": "mongodb"
},
"references": [
{
"url": "https://jira.mongodb.org/browse/MONGOCRYPT-963"
},
{
"url": "https://github.com/mongodb/libmongocrypt/releases/tag/1.21.1"
},
{
"url": "https://github.com/mongodb/libmongocrypt/security/advisories/GHSA-7mvq-mg47-m88j"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "KMS request injection via unsanitized key vault and provider values in libmongocrypt",
"x_generator": {
"engine": "cve_record_builder.py"
}
}
},
"cveMetadata": {
"assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
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"datePublished": "2026-10-22T19:14:00.708Z",
"dateReserved": "2026-10-21T21:57:57.844Z",
"dateUpdated": "2026-10-22T20:38:26.441Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-114648 (GCVE-0-2026-114648)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
7.2 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Summary
The MongoDB C# Driver does not neutralize dot and dollar characters in dictionary keys, field names and array-filter identifiers used in LINQ queries before placing them into the field paths it sends to the server. An application user whose input reaches these positions can redirect a query or update to fields the application did not name, which can expose other users' documents and widen updates beyond the intended data. Certain values can also write malformed fields that leave stored documents unreadable by the application until they are repaired.
References
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "C# Driver",
"vendor": "MongoDB",
"versions": [
{
"lessThan": "3.13.0",
"status": "affected",
"version": "2.14.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
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}
],
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}
],
"metrics": [
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"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
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"baseScore": 7.2,
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"providerMetadata": {
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"references": [
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"url": "https://jira.mongodb.org/browse/CSHARP-6181"
},
{
"url": "https://github.com/mongodb/mongo-csharp-driver/releases/tag/v3.13.0"
},
{
"url": "https://github.com/mongodb/mongo-csharp-driver/security/advisories/GHSA-2xqr-fxmx-2cmf"
}
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"source": {
"discovery": "INTERNAL"
},
"title": "NoSQL injection via dot and dollar characters in LINQ filter field names and dictionary keys",
"x_generator": {
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"cveMetadata": {
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CVE-2026-114650 (GCVE-0-2026-114650)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:38
Severity ?
6.9 (Medium) - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
5.9 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
5.9 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-838 - Inappropriate Encoding for Output Context
Summary
A flaw in the client-side encryption support of the MongoDB .NET/C# driver can cause data designated for client-side field-level encryption to be written without encryption. Under certain platform text-encoding configurations, an internal name conversion loses information, so the encryption layer fails to associate the operation with its configured encryption rules and the operation proceeds without an error being raised. An application user with the ability to write data through an affected application can therefore have sensitive fields persisted in plaintext, defeating the confidentiality guarantee that client-side encryption is intended to provide. No integrity or availability impact was observed.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| MongoDB | C# Driver |
Version: 2.10.0 ≤ |
|||||||
|
|||||||||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "C# Driver",
"vendor": "MongoDB",
"versions": [
{
"lessThan": "3.13.0",
"status": "affected",
"version": "2.10.0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "MongoDB.Libmongocrypt NuGet package",
"vendor": "MongoDB",
"versions": [
{
"lessThanOrEqual": "1.12.0",
"status": "affected",
"version": "1.0.0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
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CVE-2026-114647 (GCVE-0-2026-114647)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Summary
The MongoDB C# Driver does not reject replacement documents whose top-level field names begin with a dollar sign in FindOneAndReplace, unlike other replace operations. An application that builds such a document from user-supplied field names can have the server apply update operators instead of a full replacement. The effect is limited to the document matched by the application's own filter, whose contents can be modified in ways the application did not intend.
References
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CVE-2026-115929 (GCVE-0-2026-115929)
Vulnerability from cvelistv5
Published
2026-10-24 00:31
Modified
2026-10-24 00:53
Severity ?
7.6 (High) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-295 - Improper certificate validation
Summary
MongoDB Compass relies on Electron, a third-party runtime that carries its own TLS root certificate store. This root certificate store has the recoverable eMudhra intermediate CA certificates. Issue is resolved by updating to Compass 1.53.1, which includes Electron 44.9.1.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MongoDB, Inc. | Compass |
Version: 0 < 1.53.1 |
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CVE-2026-114644 (GCVE-0-2026-114644)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
8.2 (High) - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
The MongoDB C# Driver's BSON library contains an uncontrolled resource consumption weakness in its deserialization handling of one BSON value type. An application that deserializes untrusted content with the library retains data derived from that content for the lifetime of the process, with no limit on how much accumulates. An unauthenticated remote party who can cause such content to be deserialized can drive unbounded memory growth, exhausting the host application's available memory and denying service. There is no impact to confidentiality or integrity, and no MongoDB server component is affected.
References
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CVE-2026-114651 (GCVE-0-2026-114651)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 20:38
Severity ?
6.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
4.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
4.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-908 - Use of Uninitialized Resource
Summary
A memory-handling weakness in the BSON deserialization component of the MongoDB C# Driver may cause data left over from previously processed content to be returned when specially crafted serialized input is parsed. An unauthenticated party able to supply serialized data to an application that maps certain primitive collection types can cause residual bytes from unrelated data processed earlier on the same execution thread to be surfaced as legitimate values. This can result in disclosure of a limited amount of information belonging to other requests or principals of the consuming application. No authentication or special privileges within the application are required.
References
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CVE-2026-114643 (GCVE-0-2026-114643)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
VLAI Severity ?
EPSS score ?
CWE
- CWE-694 - Use of Multiple Resources with Duplicate Identifier
Summary
The MongoDB C# Driver writes GeoJSON extra members without checking whether their names collide with reserved GeoJSON members such as type and coordinates. An application that places user-supplied field names into these extra members can store documents with duplicate geometry fields, so the server and the driver resolve different values for the same record. Affected records can also become unreadable through the driver, interrupting application code that reads them.
References
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CVE-2026-114652 (GCVE-0-2026-114652)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 20:38
Severity ?
7.1 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-943 - Improper Neutralization of Special Elements in Data Query Logic
Summary
A data-query-logic neutralization weakness in the update-statement construction component of the MongoDB C# Driver can cause application-supplied values to be interpreted as query/update logic rather than as literal data. An application user who can influence the content of values that the application passes into the affected builder surface, without any special privilege beyond ordinary read-write application access, may cause stored data to be modified or removed in ways the application never intended. The result is unauthorized integrity impact on the affected application data; there is no direct loss of confidentiality or availability of the database service.
References
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CVE-2026-114654 (GCVE-0-2026-114654)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
VLAI Severity ?
EPSS score ?
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Summary
A numeric-type conversion flaw in the BSON handling library of the MongoDB C# Driver allows an out-of-range binary subtype value supplied through untrusted textual input to bypass the library's binary-element integrity checks. When such a value is later encoded, it is narrowed to a smaller wire representation, producing binary elements that misdeclare their type or length. An unauthenticated party able to supply text parsed by an affected application can cause it to emit and persist malformed binary data, which subsequent readers either reject with an error or silently interpret as shorter than the data that was validated.
References
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CVE-2026-114649 (GCVE-0-2026-114649)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 20:38
Severity ?
7.6 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-1025 - Comparison Using Wrong Factors
Summary
The MongoDB C# Driver compares TLS client certificates by issuer and serial number only when deciding whether two clients can share cached connections. In an application that creates clients from certificates supplied by different users, a user who provides a certificate copying another user's issuer and serial number, without that user's private key, can be given connections authenticated with the other user's certificate. Database operations can then run under the other user's identity, affecting the confidentiality and integrity of data that identity can access.
References
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CVE-2026-114645 (GCVE-0-2026-114645)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 20:38
Severity ?
5.7 (Medium) - CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
5.2 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H
5.2 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
A 32-bit integer wraparound in the MongoDB C Driver's Windows-only Kerberos/SSPI authentication code can cause an undersized heap buffer to be allocated when an excessively long credential value is supplied in the client's connection configuration. A party able to control that client-side configuration, in conjunction with the affected authentication mechanism, can cause the driver to write outside the bounds of the allocated buffer. This may result in corruption of client process memory and denial of service of the client application. The issue affects only client builds compiled with the Windows-native authentication backend.
References
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CVE-2026-114653 (GCVE-0-2026-114653)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
7.1 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-185 - Incorrect Regular Expression
Summary
A client-side encryption schema construction component in the MongoDB C# Driver places caller-supplied field identifiers into a position that is interpreted as a pattern expression, without normalizing or validating them. As a result, an application that designates certain fields for client-side field-level encryption may have the protection silently fail to apply, so data intended to be encrypted is stored and returned in cleartext; conversely, the rule may apply more broadly than intended. No user action is required to cause the condition, and any party with ordinary read access to the stored data — without possession of the encryption keys — can observe the unprotected values.
References
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CVE-2026-114646 (GCVE-0-2026-114646)
Vulnerability from cvelistv5
Published
2026-10-22 19:13
Modified
2026-10-22 21:25
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Summary
A data-validation flaw exists in the BSON handling and binary serialization path of the MongoDB C# Driver. When an application constructs a raw or lazy BSON document object from externally supplied binary data, the driver does not verify that the size quantity declared inside that data matches the amount of data actually provided, and it copies the data onto the wire unchanged. An unauthenticated party who can supply binary content to such an application can thereby cause additional elements to be inserted into, or existing elements to be removed from, the database command the application issues, without needing any database credentials of their own. This can result in unauthorized modification of stored data and disclosure of data outside the intended scope of the application's request, bounded by the database privileges the application itself holds.
References
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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