CVE-2026-9100Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
Updated under an hour ago ()
Does this affect you?
It affects MongoDB, Inc. C Driver. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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).
- CVSS
- 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
- Weakness (CWE)
- CWE-1285
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mongodb
- NVD analysis
- Analyzed
- Record last updated
- May 20, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MongoDB, Inc. C Driver mongodb:c_driver (from the name) | from 1.0 before 1.30.8; from 2.0 before 2.2.4 | CNA record |
mongodb c_driver mongodb:c_driver | from 1.10.0 before 1.30.8; from 2.0.0 before 2.2.4 | NVD |
References
- https://jira.mongodb.org/browse/CDRIVER-6281issue-tracking, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.