CVE-2026-105861
High
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.
SeverityHigh
CVSS8.2
Exploit probability—
ProductPayload
PublishedOct 6, 2026
First seenOct 6, 2026
Weakness typeCWE-200Sensitive information exposureCWE-346CWE-346
How to fix
Update
- payloadcms payload3.90.0 or later
- payload3.90.0, 4.0.0-canary.34 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| payloadcms payload | 3.0.0 ≤ v < 3.90.0, 4.0.0 | 3.90.0 |
| payloadnpm | 3.0.0 ≤ v < 3.90.0, 4.0.0-canary.0 ≤ v < 4.0.0-canary.34 | 3.90.0, 4.0.0-canary.34 |
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