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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (47.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Delmaredigital Payload-Puck — versions < 0.6.23
Weakness classification (CWE)
References
- github.com/delmaredigital/payload-puck/security/advisories/GHSA-65w6-pf7x-5g85 (Patch, Vendor Advisory)
- github.com/delmaredigital/payload-puck/issues/7 (Exploit, Issue Tracking)
- github.com/delmaredigital/payload-puck/commit/9148201c6bbfa140d44546438027a2f8a… (Patch)
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.