CVE-2026-105861: Payload external upload trust validation issue
payloadcms · payload
Affected: payloadcms · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 2% of scored CVEs
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- payloadcms · payload> 3.0.0, < 3.90.0; > 4.0.0-canary.0, < 4.0.0-canary-34
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- payloadcms
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-105861 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.