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CVE-2026-39397

Delmaredigital Payload-puck broken access control

9.4 CRITICALPublic exploitEPSS 0.61%
  1. Published7 Apr 2026

Description

@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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Affected products

Delmaredigital Payload-puck< 0.6.23

Remediation

Fixed in
Delmaredigital Payload-puck≥ 0.6.23

References

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Frequently asked

Is CVE-2026-39397 being actively exploited?

CVE-2026-39397 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.61%.

How severe is CVE-2026-39397?

CVE-2026-39397 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 0.61% probability of exploitation.

Which products are affected by CVE-2026-39397?

Affected products include Delmaredigital Payload-puck.

How do I fix CVE-2026-39397?

Upgrade affected software to a fixed version, for example Delmaredigital Payload-puck 0.6.23 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-39397 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.