CVE-2026-105846 Payload: Untrusted redirect URL parameter exploit
Attackers can redirect users to malicious sites after authentication, potentially facilitating phishing or credential theft in Payload CMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-105846?
CVE-2026-105846 is a medium-severity vulnerability in @payloadcms next, published on 6 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-601
Which versions are affected by CVE-2026-105846?
8 open source packages ship an affected version, including @payloadcms/next and payload. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@payloadcms/next npm | From 3.31.0 | 3.88.0 |
@payloadcms/next npm | From 3.31.0 | 3.88.0 |
@payloadcms/next npm | From 4.0.0-canary.0 | 4.0.0-canary.27 |
@payloadcms/next npm | From 4.0.0-canary.0 | 4.0.0-canary.27 |
payload npm | From 3.40.0 | 3.88.0 |
payload npm | From 3.40.0 | 3.88.0 |
2 more packages
payload npm | From 4.0.0-canary.0 | 4.0.0-canary.27 |
payload npm | From 4.0.0-canary.0 | 4.0.0-canary.27 |
Products include Payloadcms Payload.
How do I fix CVE-2026-105846?
Upgrade @payloadcms/next to a fixed version for your release line: 3.88.0 or 4.0.0-canary.27.
Is CVE-2026-105846 being exploited?
There is no known exploitation of CVE-2026-105846 in the wild and no public exploit code.
Other vulnerabilities in @payloadcms next
- CVE-2026-105857 Payload: RCE in Payload Form Builder
- CVE-2026-105859 Payload: Unauthorized update to collection documents
- CVE-2026-25544 Payload has an SQL Injection in JSON/RichText Queries on PostgreSQL/SQLite Adapters
- CVE-2022-27952 Unrestricted Upload of File with Dangerous Type in Payload
- CVE-2026-105851 Payload: Field access control bypass on auth collections
Sources
Also known as GHSA-w84c-53h3-mc2g.