CVE-2026-105864: Auth Bypass

Description

Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

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Weakness Type (CWE)

CWE-863 Incorrect Authorization

References

Other References

https://github.com/payloadcms/payload/commit/b8fc06a18afb6974dc07f95ac1e541c716e5926b https://github.com/payloadcms/payload/releases/tag/v3.90.0 https://github.com/payloadcms/payload/security/advisories/GHSA-xhm9-gwgw-3q2q

Frequently Asked Questions

What is CVE-2026-105864? +

Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

How do I check if I'm vulnerable to CVE-2026-105864? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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