Vulnerability · Published Oct 6, 2026 · Assigned by GitHub_M
CVE-2026-105846Payload: Untrusted redirect URL parameter exploit
Medium 6.1
In plain English
A medium-severity open redirect in next from @payloadcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% 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 from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @payloadcms/next | 3.88.0 | GHSA-w84c-53h3-mc2g |
| npm | @payloadcms/next | 4.0.0-canary.27 | GHSA-w84c-53h3-mc2g |
| npm | payload | 3.88.0 | GHSA-w84c-53h3-mc2g |
| npm | payload | 4.0.0-canary.27 | GHSA-w84c-53h3-mc2g |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| payloadcms | payload | >= 3.40.0, < 3.88.0>= 4.0.0-canary.0, < 4.0.0-canary.27 |
| @payloadcms | next | >= 3.31.0, < 3.88.0>= 4.0.0-canary.0, < 4.0.0-canary.27 |
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N