CVE-2026-9100: Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
MongoDB, Inc. · C Driver
Vendor fix available · Affected: MongoDB, Inc. C Driver · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 23% of scored CVEs
DescriptionCVE.org
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).
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- MongoDB, Inc. · C Driverfrom 1.0 before 1.30.8; from 2.0 before 2.2.4
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Improper Validation of Specified Index, Position, or Offset in Input · Input Validation and Logic
- Vendor
- MongoDB, Inc.
- Published
- May 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-9100 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.