CVE-2026-112776 Craft CMS - Authorization Bypass

Craft CMS > 5.0.0 < 5.11.0 contains an authorization bypass caused by lack of requireAllowedSite() enforcement in site-scoped GraphQL tokens, letting attackers mutate other sites' content using site-A tokens, exploit requires valid site-scoped token.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Data Tampering, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
19 October 2026
Updated
20 October 2026
Weakness
CWE-863

Vendor fix

Upgrade to version 5.11.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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