by Kastro
Paper/Archive/CVE-2026-105844

CVE-2026-105844

payloadcms payload — Payload: Prototype pollution in Payload Import Export plugin

EPSS 0.7%CVSS 9.3
critical.is priorityof 100
39
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 53.5.535 × 2010.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
payload>= 3.0.0, < 3.88.0–CNA
payload>= 4.0.0-canary.0, < 4.0.0-canary.27–CNA
plugin-import-export>= 3.0.0, < 3.88.0–CNA
plugin-import-export>= 4.0.0-canary.0, < 4.0.0-canary.27–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/payloadcms/payload/security/advisories/GHSA-qf28-8hc6-vwrprefgithub.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5arefgithub.com/payloadcms/payload/releases/tag/v3.88.0