CVE-2026-88036Network attack vector

Data disclosure and deletion via query-operator injection

Published Sep 10, 2026 · Updated Sep 10, 2026

Query injection in MongoDB C Driver before 1.30.10 and before 2.5.3 allows remote authenticated users to read or delete GridFS data. GridFS download and delete paths pass a caller-supplied BSON file identifier into a query filter, so operator-bearing documents execute as conditions instead of matching a literal ID. Reachability requires an affected application to let an authenticated user influence the structured identifier; reads can escape the intended file, and deletion can remove every chunk in the bucket.

CVSS severity6.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Query injection in MongoDB C Driver before 1.30.10 and before 2.5.3 allows remote authenticated users to read or delete GridFS data. GridFS download and delete paths pass a caller-supplied BSON file identifier into a query filter, so operator-bearing documents execute as conditions instead of matching a literal ID. Reachability requires an affected application to let an authenticated user influence the structured identifier; reads can escape the intended file, and deletion can remove every chunk in the bucket.

The record

CVE
CVE-2026-88036
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
MongoDB
Product
MongoDB .NET/C# Driver
Classifications
CWE-943, T1485, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.14.0 <1.30.10
  2. Affected versionversion=2.0.0 <2.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · MongoDB .NET/C# Driverversion=1.14.0 <1.30.10; version=2.0.0 <2.5.3

Published CVSS scores

6.1MongoDBCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
8.3MongoDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-943Improper Neutralization of Special Elements in Data Query Logic
T1485Data Destruction
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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