{"id":"GHSA-4ww4-68q3-h7g5","summary":"Payload: Field-level write access bypass in Payload on MongoDB","details":"### Impact\nA 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.\n\nYou are affected if:\nPayload version \u003c `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.\n\nRelational adapters (Postgres, SQLite) are not affected.\n\n### Patches\nHandling of incoming field data has been hardened so field-level access control is enforced consistently.\n\nUsers should upgrade to `3.87.0` (or `4.0.0-canary.20` on the `4.x` line) or later.\n\n### Workarounds\nThere is no complete workaround. Upgrading to `3.87.0` (or `4.0.0-canary.20` on the `4.x` line) is recommended.","aliases":["CVE-2026-106100"],"modified":"2026-10-07T16:30:06.358044072Z","published":"2026-10-07T16:19:57Z","database_specific":{"nvd_published_at":"2026-10-06T17:17:23Z","cwe_ids":["CWE-639","CWE-915"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-10-07T16:19:57Z"},"references":[{"type":"WEB","url":"https://github.com/payloadcms/payload/security/advisories/GHSA-4ww4-68q3-h7g5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106100"},{"type":"WEB","url":"https://github.com/payloadcms/payload/commit/2a69863deb0e3c87e36c1b3b17ab2d5b02fcb941"},{"type":"WEB","url":"https://github.com/payloadcms/payload/commit/8f77dffa9552885ec2710768cfee15b57e389935"},{"type":"PACKAGE","url":"https://github.com/payloadcms/payload"},{"type":"WEB","url":"https://github.com/payloadcms/payload/releases/tag/v3.87.0"}],"affected":[{"package":{"name":"@payloadcms/db-mongodb","ecosystem":"npm","purl":"pkg:npm/%40payloadcms/db-mongodb"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.87.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-4ww4-68q3-h7g5/GHSA-4ww4-68q3-h7g5.json"}},{"package":{"name":"@payloadcms/db-mongodb","ecosystem":"npm","purl":"pkg:npm/%40payloadcms/db-mongodb"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.20"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-4ww4-68q3-h7g5/GHSA-4ww4-68q3-h7g5.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N"}]}