GridFS Metadata Overflow Vulnerability in MongoDB
CVE-2025-14911

7.1HIGH

Key Information:

Vendor

Mongodb
Status
Mongo-c-driver
Vendor
CVE Published:
27 January 2026

What is CVE-2025-14911?

This vulnerability arises from the insufficient validation of user-controlled 'chunkSize' metadata in MongoDB's GridFS functionality. Attackers can potentially exploit this weakness to cause buffer overflows, leading to unexpected behavior and impacts on data integrity. Proper validation measures should be implemented to prevent such security risks.

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Deploy the Patch

Affected Version(s)

Mongo-c-driver 0 < 2.1.3

References

https://jira.mongodb.org/browse/CDRIVER-6125

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

oblivionsage
JSON
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