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Findings

CVE-2026-41128

Craft CMS is a content management system (CMS).

Published Apr 22, 2026 · updated Jun 17, 2026

Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the endpoint allows a user with only permission to remove arbitrary users from all user groups. While enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty value removes all existing group memberships. Version 5.9.15 contains a patch.

Code

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Timeline

Detection, updates, and resolution for this record.

  1. Apr 22, 2026 · NIST NVD

    Detected

    Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the endpoint allows a user with only permission to remove arbitrary users from all user groups. While enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty value removes all existing group memberships. Version 5.9.15 contains a patch.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the endpoint allows a user with only permission to remove arbitrary users from all user groups. While enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty value removes all existing group memberships. Version 5.9.15 contains a patch.

Sources

  • CVE.orgVulnerability recordCVE-2026-41128

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-41128

    Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the endpoint allows a user with only permission to remove arbitrary users from all user groups. While enforces per-group authorization for a

    nvd.nist.gov

References