CVE-2026-105844

Payload: Prototype pollution in Payload Import Export plugin

Published Oct 6, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-qf28-8hc6-vwrp Payload: Prototype pollution in Payload Import Export plugin
History
Type Values Removed Values Added
First Time appeared Payloadcms
Payloadcms payload
Payloadcms plugin-import-export
Vendors & Products Payloadcms
Payloadcms payload
Payloadcms plugin-import-export
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
Title Payload: Prototype pollution in Payload Import Export plugin
Weaknesses CWE-1321
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 9, 2026, 1:08 AM
Reserved
Oct 5, 2026, 11:06 PM
Status
Undergoing Analysis
Published
Oct 6, 2026, 4:17 PM
Modified
Oct 9, 2026, 2:16 AM