CVE-2026-120684
MongoDB C Driver GridFS gap lets a shared writer recover a protected client's password
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.
| CWE | CWE-908 |
| Vendor | mongodb |
| Product | c driver |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 3, 2026 |
| Last Updated | Nov 3, 2026 |
Stay Ahead of the Next One
Get instant alerts for mongodb c driver
Be the first to know when new medium vulnerabilities affecting mongodb c driver are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
MongoDB / C Driver
1.25.0 ≤ 1.30.14 2.0.0 ≤ 2.5.7