CVE-2026-105844CWE-1321

CVE-2026-105844

published October 6, 2026

CVSS
9.3
EPSS
1%
Percentile
43.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
9.3 · NONE
CVSS v4.0
9.3 · 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
0.00519 · 43.3th percentile
Weakness
CWE-1321 · Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Published
2026-10-06T20:17Z
References (3)
https://github.com/payloadcms/payload/commit/a742140ab4fca3160f7f83e9e7d996552ffc3b5a · [email protected]https://github.com/payloadcms/payload/releases/tag/v3.88.0 · [email protected]https://github.com/payloadcms/payload/security/advisories/GHSA-qf28-8hc6-vwrp · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 1%
    epss
  • 06 OCT 15:57Z
    Payload: Prototype pollution in Payload Import Export plugin
    cvelistv5