CVE-2026-88034
Medium
Elevated severity or exploit probability.
CVSS base
8.3
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
EPSS — probability of exploitation (30 days)
0.3%
17.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-943
Published 2026-09-10 · modified 2026-09-16
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2026-09-10 — Published (NVD)
- 2026-09-16 — Last modified (NVD)
Description
Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C++ Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable.