CVE-2026-82073Network attack vector

Unauthorized collection access via client-set internal parameter

Published Sep 8, 2026 · Updated Sep 8, 2026

Incorrect authorization in MongoDB Server 8.3.0 through 8.3.8 allows remote authenticated users to read unauthorized collection data. The aggregation framework accepts an externally set internal command parameter and consequently skips the view-level authorization check. Exploitation requires limited read privileges and Atlas Search features, and it exposes collection data outside the account's authorized view.

CVSS severity7.1
High
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

Incorrect authorization in MongoDB Server 8.3.0 through 8.3.8 allows remote authenticated users to read unauthorized collection data. The aggregation framework accepts an externally set internal command parameter and consequently skips the view-level authorization check. Exploitation requires limited read privileges and Atlas Search features, and it exposes collection data outside the account's authorized view.

The record

CVE
CVE-2026-82073
Published
Sep 8, 2026
Updated
Sep 8, 2026
Vendor
MongoDB
Product
MongoDB Server
Classifications
CWE-863, T1213.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 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=8.3.0 <8.3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · MongoDB Serverversion=8.3.0 <8.3.9

Published CVSS scores

6.5MongoDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.1MongoDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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-863Incorrect Authorization
T1213.006Data from Information Repositories: Databases

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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