CVE-2026-9100CWE-1285

CVE-2026-9100

Medium · published May 20, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
21.7
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00301 · 21.7th percentile
Weakness
CWE-1285 · Improper Validation of Specified Index, Position, or Offset in Input
Published
2026-05-20T21:16Z
Affected products (2)
ProductVersionsFixed in
mongodb/c_driver≥ 1.10.0, < 1.30.81.30.8
mongodb/c_driver≥ 2.0.0, < 2.2.42.2.4
References (1)
https://jira.mongodb.org/browse/CDRIVER-6281 · [email protected]
EPSS history
Timeline
  • 20 MAY 15:55Z
    Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
    cvelistv5