CVE-2026-105844
Payload: Prototype pollution in Payload Import Export plugin
CRITICAL 9.3EPSS 0.5%
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.
- Affected
- payloadcms · @payloadcms · payload · plugin-import-export
- CVSS v4.0 GITHUB
- 9.3 CRITICAL
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 9.3 CRITICAL
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 - EPSS
- 0.52% chance of exploitation in the next 30 days, 43rd percentile
- Published
- 2026-10-06
- Updated
- 2026-10-09
Proof-of-concept exploits (3)
- payloadcms/payload/security/advisories/GHSA-qf28-8hc6-vwrp
- payloadcms/payload/releases/tag/v3.88.045286★ · 2026-10-16
- murrez/CVE-2026-1058442★ · 2026-10-07