PT-2026-42200 · Mongodb · C Driver

Published 2026-05-20 · Updated 2026-05-20 · CVE-2026-9100

Mitre

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H

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).

Fix

Weakness Enumeration

CWE-1285

Related Identifiers

CVE-2026-9100

Affected Products

C Driver

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-9100 · Security Note
• https://jira.mongodb.org/browse/CDRIVER-6281 · Note