Vulnerability · Published Oct 6, 2026 · Assigned by GitHub_M
CVE-2026-106100Payload: Field-level write access bypass in Payload on MongoDB
High 7.1
In plain English
A high-severity authorization bypass via user-controlled key in payload from payloadcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @payloadcms/db-mongodb | 3.87.0 | GHSA-4ww4-68q3-h7g5 |
| npm | @payloadcms/db-mongodb | 4.0.0-canary.20 | GHSA-4ww4-68q3-h7g5 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| payloadcms | payload | < 3.87.0>= 4.0.0-canary.0, < 4.0.0-canary.20 |
Weakness: CWE-639, CWE-915 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
References
- https://github.com/payloadcms/payload/security/advisories/GHSA-4ww4-68q3-h7g5 x_refsource_CONFIRM
- https://github.com/payloadcms/payload/commit/2a69863deb0e3c87e36c1b3b17ab2d5b02fcb941 x_refsource_MISC
- https://github.com/payloadcms/payload/commit/8f77dffa9552885ec2710768cfee15b57e389935 x_refsource_MISC
- https://github.com/payloadcms/payload/releases/tag/v3.87.0 x_refsource_MISC