Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Payload's MongoDB adapter, @payloadcms/db-mongodb, is vulnerable in versions below 3.87.0 and in 4.0.0-canary releases before 4.0.0-canary.20. An authenticated user can modify fields they are not permitted to change on documents they can otherwise update, in collections that use field-level access control to restrict writes under certain conditions. Relational adapters are not affected. Upgrade to 3.87.0, or to 4.0.0-canary.20 on the 4.x line; the source says no complete workaround exists.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.1 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0022, the 12th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 13:33 UTC First seen by agentprime
- 31 Oct 2026, 13:33 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-4ww4-68q3-h7g5
- OSV: GHSA-4ww4-68q3-h7g5
- github.com/payloadcms/payload/security/advisories/GHSA-4ww4-68q3-h7g5
- nvd.nist.gov/vuln/detail/CVE-2026-106100
- github.com/payloadcms/payload/commit/2a69863deb0e3c87e36c1b3b17ab2d5b02fcb941
- github.com/payloadcms/payload/commit/8f77dffa9552885ec2710768cfee15b57e389935
- github.com/payloadcms/payload
- github.com/payloadcms/payload/releases/tag/v3.87.0