CVE-2026-9100

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).

Scoring

Severity
MEDIUM
CVSS base score
6
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS probability
0.29%
CWE
CWE-1285
Published
2026-05-20
Last modified
2026-05-20

Affected products

Weakness type

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