Auth bypass in Delmaredigital Payload-Puck

CVE-2026-39397

@delmaredigital/payload-puck is a PayloadCMS plugin for integrating Puck visual page builder. Prior to 0.6.23, all /api/puck/* CRUD endpoint handlers registered by createPuckPlugin() called Payload's local API with the default overrideAccess: true, bypassing all collection-level access control. The access option passed to createPuckPlugin() and any access rules defined on Puck-registered collections were silently ignored on these endpoints. This vulnerability is fixed in 0.6.23.

Vulnerability class: Broken Access Control

EPSS: 0.004 (30.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-39397?
CVE-2026-39397 is a critical-severity vulnerability in Delmaredigital Payload-Puck, classified under Missing Authorization. CVSS score: 9.4/10. Published 2026-04-07.
How severe is CVE-2026-39397?
Critical severity. CVSS v3 base score is 9.4 out of 10.