CVE-2026-9100

6.0 mediumEPSS 0.3%

Medium (6.0) in mongodb c driver. EPSS 0.3% chance of exploitation in the next 30 days.

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).

Severity

CVSS 4.0

6.0 medium

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

CVSS 3.1

7.1 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWE: CWE-1285
Published: 2026-05-20
Modified: 2026-09-24
Record from: the NVD, synced 2026-10-19

Affected

mongodb:c_driver

References

https://jira.mongodb.org/browse/CDRIVER-6281

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