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.

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 overrideAcce…

Vulnerability class: Broken Access Control

EPSS: 0.001 (21.7th 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

Delmaredigital Payload-puck — versions < 0.6.23

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

https://github.com/delmaredigital/payload-puck/security/advisories/GHSA-65w6-pf7x-5g85 (x_refsource_CONFIRM)
https://github.com/delmaredigital/payload-puck/issues/7 (x_refsource_MISC)
https://github.com/delmaredigital/payload-puck/commit/9148201c6bbfa140d44546438027a2f8a70f79a4 (x_refsource_MISC)

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.