CVE-2026-88023Network attack vector

GridFS disclosure and deletion via file-ID query injection

Published Sep 10, 2026 · Updated Sep 10, 2026

GridFS query injection in MongoDB PHP Library 1.1.0 through 1.21.4 and 2.0.0 through 2.4.1 allows remote authenticated users to read stored files. GridFS bucket methods use a structured caller-supplied file ID directly in MongoDB filters, so query-operator keys alter the intended match instead of remaining a literal ID. Reachability requires an affected application to pass an authenticated user's structured ID into download, delete, or rename operations; exploitation can expose another file, rename it, or delete every chunk in the bucket and leave stored content unreadable.

CVSS severity6.1
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

GridFS query injection in MongoDB PHP Library 1.1.0 through 1.21.4 and 2.0.0 through 2.4.1 allows remote authenticated users to read stored files. GridFS bucket methods use a structured caller-supplied file ID directly in MongoDB filters, so query-operator keys alter the intended match instead of remaining a literal ID. Reachability requires an affected application to pass an authenticated user's structured ID into download, delete, or rename operations; exploitation can expose another file, rename it, or delete every chunk in the bucket and leave stored content unreadable.

The record

CVE
CVE-2026-88023
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
MongoDB
Product
MongoDB PHP Library
Classifications
CWE-943, CAPEC-676
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=1.1.0 <=1.21.4
  2. Affected versionversion=2.0.0 <=2.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · MongoDB PHP Libraryversion=1.1.0 <=1.21.4; version=2.0.0 <=2.4.1

Published CVSS scores

6.1NVDCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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

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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