CVE-2026-84799Network attack vectorHinoki check available

Cross-group PII disclosure via unfiltered GraphQL relations

Published Sep 2, 2026 · Updated Sep 2, 2026

Improper authorization in Pixel & Tonic Craft CMS before 5.11.0 allows remote authenticated users to read user PII through GraphQL. Native author and uploader relations bypass getEagerLoadingGqlConditions() and resolve directly from source elements without user-group filtering. A GraphQL token limited to one readable group can expose usernames, email addresses, and full names for authors or uploaders in other groups, including administrators.

CVSS severity5.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper authorization in Pixel & Tonic Craft CMS before 5.11.0 allows remote authenticated users to read user PII through GraphQL. Native author and uploader relations bypass getEagerLoadingGqlConditions() and resolve directly from source elements without user-group filtering. A GraphQL token limited to one readable group can expose usernames, email addresses, and full names for authors or uploaders in other groups, including administrators.

The record

CVE
CVE-2026-84799
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
Pixel & Tonic
Product
Craft CMS
Classifications
CWE-285, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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=5.0.0-RC1 <5.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pixel & Tonic · Craft CMSversion=5.0.0-RC1 <5.11.0

Published CVSS scores

4.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/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-285Improper Authorization
T1087Account Discovery

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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