CVE-2026-9100

MEDIUM

Heap memory out of bounds read and crash in C Driver legacy GridFS file reader

Title source: cna
STIX 2.1

Description

The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).

References (1)

Core 1
Core References
Issue Tracking issue-tracking
https://jira.mongodb.org/browse/CDRIVER-6281

Scores

CVSS v3 5.9
EPSS 0.0028
EPSS Percentile 19.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-1285
Status published
Products (2)
MongoDB, Inc./C Driver 1.0 - 1.30.8
MongoDB, Inc./C Driver 2.0 - 2.2.4
Published May 20, 2026
Tracked Since May 20, 2026