CVE-2026-106100
Payload: Field-level write access bypass in Payload on MongoDB
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Payload: Field-level write access bypass in Payload on MongoDB
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.
- Record
CVE-2026-106100- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-639, CWE-915
- Updated
- 2026-11-02
EUVDEUVD-2026-93515
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.
- Record
EUVD-2026-93515- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4ww4-68q3-h7g5
Payload: Field-level write access bypass in Payload on MongoDB
Impact
A vulnerability in field-level access control could allow an authenticated user to modify fields they are not permitted to change on documents they can otherwise update.
You are affected if:
Payload version < 3.87.0 (or a 4.0.0-canary release before 4.0.0-canary.20) using the MongoDB adapter (@payloadcms/db-mongodb) with any collection that relies on field-level access control to restrict writes under certain conditions.
Relational adapters (Postgres, SQLite) are not affected.
Patches
Handling of incoming field data has been hardened so field-level access control is enforced consistently.
Users should upgrade to 3.87.0 (or 4.0.0-canary.20 on the 4.x line) or later.
Workarounds
There is no complete workaround. Upgrading to 3.87.0 (or 4.0.0-canary.20 on the 4.x line) is recommended.
- Record
GHSA-4ww4-68q3-h7g5- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-639, CWE-915
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-106100- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-639, CWE-915
- Updated
- 2026-11-02
OSV
Payload: Field-level write access bypass in Payload on MongoDB
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.
- Record
CVE-2026-106100- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-639, CWE-915
- Updated
- 2026-11-02
OSVGHSA-4ww4-68q3-h7g5
Payload: Field-level write access bypass in Payload on MongoDB
Impact
A vulnerability in field-level access control could allow an authenticated user to modify fields they are not permitted to change on documents they can otherwise update.
You are affected if:
Payload version < 3.87.0 (or a 4.0.0-canary release before 4.0.0-canary.20) using the MongoDB adapter (@payloadcms/db-mongodb) with any collection that relies on field-level access control to restrict writes under certain conditions.
Relational adapters (Postgres, SQLite) are not affected.
Patches
Handling of incoming field data has been hardened so field-level access control is enforced consistently.
Users should upgrade to 3.87.0 (or 4.0.0-canary.20 on the 4.x line) or later.
Workarounds
There is no complete workaround. Upgrading to 3.87.0 (or 4.0.0-canary.20 on the 4.x line) is recommended.
- Record
GHSA-4ww4-68q3-h7g5- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-639, CWE-915
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@payloadcms/db-mongodbnpm |
before 3.87.0 | 3.87.0 |
@payloadcms/db-mongodbnpm |
4.0.0-canary.0 up to 4.0.0-canary.20 | 4.0.0-canary.20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-106100 is a high vulnerability (CVSS 7.1) in Payloadcms Payload, published October 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. Fixed in @payloadcms/db-mongodb 3.87.0.
References
github.com/payloadcms/payload/security/advisories/GHSA-4ww4-68q3-h7g5
nvd.nist.gov/vuln/detail/CVE-2026-106100