Is CVE-2026-93363 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-93363?

CVE-2026-93363 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-93363

Description

The @payloadcms/storage-vercel-blob storage adapter for Payload contains an improper access control vulnerability that allows authenticated users to bypass collection-level permissions by accessing the client-upload route directly. Attackers can upload files through the client-upload endpoint without possessing the required collection access permissions, circumventing the intended access control enforcement.