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EUVD-2026-169367
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 06:39
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T06:39:23.431288+00:00",
"id": "EUVD-2026-169367"
}
CVE-2021-20328 (GCVE-0-2021-20328)
Vulnerability from cvelistv5 – Published: 2021-02-25 16:30 – Updated: 2024-09-16 19:10
VLAI
EPSS
VEX
Title
MongoDB Java driver client-side field level encryption not verifying KMS host name
Summary
Specific versions of the Java driver that support client-side field level encryption (CSFLE) fail to perform correct host name verification on the KMS server’s certificate. This vulnerability in combination with a privileged network position active MITM attack could result in interception of traffic between the Java driver and the KMS service rendering Field Level Encryption ineffective. This issue was discovered during internal testing and affects all versions of the Java driver that support CSFLE. The Java async, Scala, and reactive streams drivers are not impacted. This vulnerability does not impact driver traffic payloads with CSFLE-supported key services originating from applications residing inside the AWS, GCP, and Azure network fabrics due to compensating controls in these environments. This issue does not impact driver workloads that don’t use Field Level Encryption.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-13 16:48 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://jira.mongodb.org/browse/JAVA-4017 | x_refsource_MISC |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB Inc. | mongo-java-driver |
Affected:
3.11 , ≤ 3.11.2
(custom)
Affected: 3.12 , ≤ 3.12.7 (custom) |
|
| MongoDB Inc. | mongodb-driver |
Affected:
3.11 , ≤ 3.11.2
(custom)
Affected: 3.12 , ≤ 3.12.7 (custom) |
|
| MongoDB Inc. | mongodb-driver-sync |
Affected:
4.2.0
Affected: 3.11 , ≤ 3.11.2 (custom) Affected: 3.12 , ≤ 3.12.7 (custom) Affected: 4.0 , ≤ 4.0.5 (custom) Affected: 4.1 , ≤ 4.1.1 (custom) |
|
| MongoDB Inc. | mongodb-driver-legacy |
Affected:
4.2.0
Affected: 3.11 , ≤ 3.11.2 (custom) Affected: 3.12 , ≤ 3.12.7 (custom) Affected: 4.0 , ≤ 4.0.5 (custom) Affected: 4.1 , ≤ 4.1.1 (custom) |
|
| mongodb | java_driver |
Affected:
3.11 , ≤ 3.11.2
(custom)
Affected: 3.12 , ≤ 3.12.7 (custom) cpe:2.3:a:mongodb:java_driver:*:*:*:*:*:mongodb:*:* |
Date Public
2021-02-25 00:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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