CVE-2026-64664: Statamic Missing Authorization On Control Panel Vulnerability

MODERATE
Advisory Identifier: GHSA-225x-3jhx-wh4q
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CVSS 4.3
CWE-862 CWE-200
Published
Advisory Summary

CVE-2026-64664 is a MODERATE (CVSS 4.3) missing authorization on control panel vulnerability (CWE-862: Missing Authorization) affecting Statamic libraries in the Packagist ecosystem. The issue involves missing authorization on control panel endpoint allows disclosure of user existence. Remediation is available by upgrading affected packages to version 5.74.1, 6.24.0.

CVE-2026-64664 at a Glance

CVE Identifier CVE-2026-64664
GHSA Identifier GHSA-225x-3jhx-wh4q
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-862: Missing Authorization
Affected Product Statamic
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-64664

To remediate this vulnerability, upgrade all affected Statamic dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

statamic/cms fixed: 5.74.1 
Upgrade statamic/cms to 5.74.1
statamic/cms fixed: 6.24.0 
Upgrade statamic/cms to 6.24.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for statamic/cms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-64664, inspect your project dependencies for Statamic:

inspect dependencies for statamic/cms

Analyze the terminal output to locate any version of Statamic in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.74.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Statamic, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact An authenticated Control Panel user could use an endpoint intended for the user creation wizard to determine if a given email address belongs to an existing user, without having permission to view users. The endpoint only exposed user existence, not any of its data. ### Patches This has been fixed in 5.74.1 and 6.24.0.

CVE-2026-64664 Affected Statamic Versions

2 component(s)
Fixed Versions:
5.74.16.24.0
Product / Package Ecosystem Affected Versions Fixed Version
statamic/cms
 Packagist
< 5.74.1
5.74.1
statamic/cms
 Packagist
≥ 6.0.0
< 6.24.0
6.24.0

References

Statamic Release RELEASE
https://github.com/statamic/cms/releases/tag/v5.74.1
GitHub Advisory / Wiki ADVISORY
https://github.com/statamic/cms/security/advisories/GHSA-225x-3jhx-wh4q
Statamic Source Repository REPOSITORY
https://github.com/statamic/cms/pull/14905
Security Fix Commit FIX COMMIT
https://github.com/statamic/cms/commit/aea68053cedab5c79d10102820b57345a7d7102e
Statamic Source Repository REPOSITORY
https://github.com/statamic/cms
Statamic Release RELEASE
https://github.com/statamic/cms/releases/tag/v6.24.0

Frequently Asked Questions

What is CVE-2026-64664?
CVE-2026-64664 is a security vulnerability in Statamic involving Missing authorization on Control Panel endpoint allows disclosure of user existence under CWE-862: Missing Authorization.
Which Statamic versions are affected?
Affected versions include releases prior to 5.74.1, 6.24.0 across affected packages: statamic/cms.
What version fixes CVE-2026-64664?
Upgrading to 5.74.1, 6.24.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is statamic/cms affected?
Yes, statamic/cms is affected in releases prior to 5.74.1, 6.24.0. Upgrade your dependency to 5.74.1, 6.24.0 or later.
What is the CVSS score of CVE-2026-64664?
CVE-2026-64664 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-64664?
CVE-2026-64664 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2026-64664?
Run the dependency tree command: 'inspect dependencies for statamic/cms'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-225x-3jhx-wh4q",
  "modified" : "2026-08-06T19:22:34Z",
  "published" : "2026-08-06T19:22:34Z",
  "aliases" : [ "CVE-2026-64664" ],
  "summary" : "Statamic: Missing authorization on Control Panel endpoint allows disclosure of user existence",
  "details" : "### Impact\nAn authenticated Control Panel user could use an endpoint intended for the user creation wizard to determine if a given email address belongs to an existing user, without having permission to view users.\n\nThe endpoint only exposed user existence, not any of its data.\n\n### Patches\nThis has been fixed in 5.74.1 and 6.24.0.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "statamic/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.74.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "statamic/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.0.0"
      }, {
        "fixed" : "6.24.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/statamic/cms/security/advisories/GHSA-225x-3jhx-wh4q"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/statamic/cms/pull/14905"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/statamic/cms/commit/aea68053cedab5c79d10102820b57345a7d7102e"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/statamic/cms"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/statamic/cms/releases/tag/v5.74.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/statamic/cms/releases/tag/v6.24.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-08-06T19:22:34Z",
    "nvd_published_at" : null
  }
}