All vulnerabilities
CVE-2026-105858GHSA-97rh-rhh2-7vjv

Payload: Remote Code Execution through first-register

payloadcms payloadnpmLibraries & packages
Open in ThreatlineRecord JSON
CVSS
8.1High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.48%Chance of exploitation activity in the next 30 days, higher than 40% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.90.0Also 4.0.0-canary.34GitHub
Published6 Oct 2026Updated 9 Oct 2026CVE List

What fixes it

  • 3.90.0payload, npmGitHubnpm install payload@3.90.0
  • 4.0.0-canary.34payload, npmGitHubnpm install payload@4.0.0-canary.34

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Impact

A crafted request to the public first-register operation can be used to perform a RCE exploit.

You are affected if:

  • You use local auth strategy and your application remains without an initial user created

Patches

In the patched version data submission to create first user is properly sanitized.

Users should upgrade Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.

Text from GitHub Advisory Database

Affected versions 6

  • payload, npm< 3.90.0GitHub
  • payload, npm>= 4.0.0-canary.0, < 4.0.0-canary.34GitHub
  • payloadaffected: < 3.90.0CVE List
  • payloadaffected: >= 4.0.0-canary.0, < 4.0.0-canary.34CVE List
  • payload, npmfrom first release, fixed in 3.90.0OSV
  • payload, npmfrom 4.0.0-canary.0, fixed in 4.0.0-canary.34OSV

References 5