CVE-2026-88029Network attack vector

Data disclosure and deletion via file-ID query injection

Published Sep 10, 2026 · Updated Sep 10, 2026

Query-operator injection in MongoDB PyMongo 1.6.0 through 4.18.0 allows remote authenticated users to access unintended GridFS files. GridFS methods place a caller-supplied structured file ID directly into MongoDB filters, allowing embedded query operators to change which file or chunks match. Exploitation requires an affected application to pass an authenticated user's structured ID; successful queries can read or rename another file or delete all chunks in the bucket.

CVSS severityUnavailable
Unscored
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-operator injection in MongoDB PyMongo 1.6.0 through 4.18.0 allows remote authenticated users to access unintended GridFS files. GridFS methods place a caller-supplied structured file ID directly into MongoDB filters, allowing embedded query operators to change which file or chunks match. Exploitation requires an affected application to pass an authenticated user's structured ID; successful queries can read or rename another file or delete all chunks in the bucket.

The record

CVE
CVE-2026-88029
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
MongoDB
Product
PyMongo
Classifications
CWE-943, CAPEC-676, T1485, T1213.006
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=1.6.0 <4.18.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · PyMongoversion=1.6.0 <4.18.1

Published CVSS scores

No CVSS assessment is available in this record.

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
CAPEC-676NoSQL Injection
T1485Data Destruction
T1213.006Databases

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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