CVE-2026-88034

GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C++ Driver

HIGH
8.3
CVSS Score
Published: September 10, 2026 at 06:05 PM UTC
Updated: September 16, 2026 at 06:17 PM UTC
1 product affected across 1 vendorC++ Driver

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Severity
HIGH8.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.2.0 ≤ v < 4.5.23.2.0 ≤ v < 4.5.33.2.0
Affected range stops below 4.5.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.5.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryIssue Tracking
Source: cverecord
https://jira.mongodb.org/browse/CXX-3556

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.3HIGHmongodb
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-943

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