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Vulnerabilities

Vulnerability · CVE-2026-41128

Craft CMS is a content management system (CMS).

Published Apr 22, 2026 · catalog updated Jun 17, 2026 · Craft CMS is a

Check if you run it

No confirmed exploitation is on record for CVE-2026-41128. EPSS is 0.36%. Act only if a listed version of Craft CMS is a is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Craft CMS is a).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.36%
Remediation
Advisory link
Affected products
See sources for product scope

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.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-41128

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41128. EPSS is 0.36%. Act only if a listed version of Craft CMS is a is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-862: Missing Authorization. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

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
  • FIRST EPSSExploitation probabilityCVE-2026-41128

    30-day exploitation probability 0.4%

    first.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

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.