CVE-2025-14911 HIGH

CVE-2025-14911: Integer Overflow in GridFS chunkSize Leading to Heap Allocation Failure

Vendor Mongodb
Product Mongo-c-driver
Published January 27, 2026
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

User-controlled chunkSize metadata from MongoDB lacks appropriate validation allowing malformed GridFS metadata to overflow the bounding container.

Key dates

02Disclosure timeline

January 27, 2026 CVE published
February 26, 2026 Record updated