Vulnerability · Published Oct 6, 2026 · Assigned by GitHub_M
CVE-2026-105861Payload external upload trust validation issue
High 7.2
In plain English
A high-severity information exposure in payload from payloadcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not verified as trusted, potentially exposing a valid session to an unintended recipient. This issue is fixed in version 3.90.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | payload | 3.90.0 | GHSA-pj5h-5q6c-3pfx |
| npm | payload | 4.0.0-canary.34 | GHSA-pj5h-5q6c-3pfx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| payloadcms | payload | > 3.0.0, < 3.90.0> 4.0.0-canary.0, < 4.0.0-canary-34 |
Weakness: CWE-200, CWE-346 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N