Description
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).
Published: 2026-05-20
Score: 6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Wed, 20 May 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 20 May 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb c Driver
Vendors & Products Mongodb
Mongodb c Driver

Wed, 20 May 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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).
Title Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
Weaknesses CWE-1285
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6, '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'}


Subscriptions

Mongodb C Driver
cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-05-20T17:20:32.902Z

Reserved: 2026-05-20T15:13:47.129Z

Link: CVE-2026-9100

cve-icon Vulnrichment

Updated: 2026-05-20T17:20:29.521Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-20T17:16:32.360

Modified: 2026-06-17T11:04:50.210

Link: CVE-2026-9100

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T18:00:14Z

Weaknesses