Craft CMS from 5.0.0 — CVE-2026-112776 (Critical)

Date Oct 19, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Craft · CMS from 5.0.0

CVE CVE-2026-112776

Critical vendor advisory CVE-2026-112776

Summary

Craft CMS from 5.0.0 before 5.11.0 contains an authorization bypass vulnerability that allows site-scoped GraphQL tokens to mutate other sites' content because requireAllowedSite() is not enforced. Attackers holding a site-A token can create entries in site B via supplied siteId and delete entries, categories, tags, and assets shared across sites.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.8) in Craft CMS from 5.0.0. Patch or mitigate promptly.

Operator check

Review CVE-2026-112776 in your asset inventory. Apply patches per vendor guidance and verify CMS from 5.0.0 is not exposed. CVSS score: 9.8.

Sources

NVD — CVE-2026-112776 Source reference Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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