All vulnerabilities
CVE-2026-105861GHSA-pj5h-5q6c-3pfx

Payload external upload trust validation issue

payloadcms payloadnpmLibraries & packages
Open in ThreatlineRecord JSON
CVSS
7.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.90.0Also 4.0.0-canary.34GitHub
Published6 Oct 2026Updated 20 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

Under certain external upload configurations, Payload could send authentication data to a destination that was not verified as trusted. If the affected request contained a valid session, this could expose that session to an unintended recipient.

You are affected if:

  • You have enabled external URL-based upload retrieval, where authenticated requests can trigger it.

Patches

Payload now validates the destination before forwarding authentication data and reapplies that validation when a request changes destination.

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

Workarounds

It is recommended to update all Payload packages to >= 3.90.0 or >= 4.0.0-canary.34.

If you cannot, a valid workaround exists:

  • Disable external URL-based upload retrieval where practical.
  • If you cannot disable it, configure the upload header filter to remove authentication data from outbound file requests.
  • Restrict access to the affected upload functionality.

Text from GitHub Advisory Database

Affected versions 6

  • payload, npm>= 3.0.0, < 3.90.0GitHub
  • payload, npm>= 4.0.0-canary.0, < 4.0.0-canary.34GitHub
  • payloadaffected: > 3.0.0, < 3.90.0CVE List
  • payloadaffected: > 4.0.0-canary.0, < 4.0.0-canary-34CVE List
  • payload, npmfrom 3.0.0, fixed in 3.90.0OSV
  • payload, npmfrom 4.0.0-canary.0, fixed in 4.0.0-canary.34OSV

References 5