What is CVE-2026-106100?

CVE-2026-106100 is a high-severity vulnerability in Payloadcms Payload, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-10-06.

How severe is CVE-2026-106100?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Payloadcms Payload

CVE-2026-106100

Payload is a free and open source headless content management system. In @payloadcms/db-mongodb versions before 3.87.0 and canary versions before 4.0.0-canary.20, an authenticated user who can update a document can modify fields that field-level write access control does not permit that user to change. The Postgres and SQLite adapters are not affected. This issue is fixed in versions 3.87.0 and 4.0.0-canary.20.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Payloadcms Payload — versions < 3.87.0, >= 4.0.0-canary.0, < 4.0.0-canary.20

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-106100?: CVE-2026-106100 is a high-severity vulnerability in Payloadcms Payload, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-10-06.
How severe is CVE-2026-106100?: High severity. CVSS v3 base score is 7.1 out of 10.