{"id":"CVE-2026-105851","aliases":["EUVD-2026-93494","GHSA-vc4h-q48j-5hcx"],"status":"published","title":"Payload: Field access control bypass on auth collections","description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00249,"percentile":0.16422,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284","CWE-863"],"published":"2026-10-06T16:13:11Z","modified":"2026-10-28T02:31:15Z","fixes":[{"ecosystem":"npm","package":"payload","fixed_in":["3.90.0","4.0.0-canary.34"],"sources":["ghsa"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"payload","ranges":[{"type":"UNPARSED","raw":"\u003e 3.0.0, \u003c 3.90.0","events":[{"fixed":"3.90.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"payload","ranges":[{"type":"UNPARSED","raw":"\u003e 4.0.0-canary.0, \u003c 4.0.0-canary.34","events":[{"fixed":"4.0.0-canary.34"}]}]}],"products":[{"vendor":"payloadcms","product":"payload"}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-vc4h-q48j-5hcx","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory"]},{"url":"https://github.com/payloadcms/payload/commit/099ef12e2682f076aa8e8d0ccb790536b4e1027f","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","tags":["x_refsource_MISC","Patch","Release Notes","web"]},{"url":"https://github.com/advisories/GHSA-vc4h-q48j-5hcx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105851.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105851","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-105851","title":"Payload: Field access control bypass on auth collections","description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T16:13:11.367Z","modified":"2026-10-06T17:39:29.558Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-284","CWE-863"],"updated_at":"2026-11-02T14:19:56.755658Z"}],"euvd":[{"id":"EUVD-2026-93494","description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T16:13:11Z","modified":"2026-10-06T17:39:29Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:37.140631Z"}],"ghsa":[{"id":"GHSA-vc4h-q48j-5hcx","title":"Payload: Field access control bypass on auth collections","description":"## Impact\n\nPayload's duplicate operation copies field values from the source document even when a field is hidden, or its `access.read` or `access.create` rule would reject the value for that caller.\n\nThe `disableDuplicate` collection setting, enabled by default on auth collections, did not stop this.\n\n## Patches\n\nUsers should upgrade Payload packages to `\u003e= 3.90.0` or `\u003e= 4.0.0-canary.34`.\n\n## Workarounds\n\nAdd a beforeDuplicate field hook to fields and set the value to empty or your default value.","status":"published","published":"2026-10-06T16:17:23Z","modified":"2026-10-06T16:17:25Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"cwes":["CWE-284","CWE-863"],"updated_at":"2026-11-02T14:41:27.036917Z"}],"nvd":[{"id":"CVE-2026-105851","description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T17:17:20.843Z","modified":"2026-10-15T00:12:41.997Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-284","CWE-863"],"updated_at":"2026-11-02T14:12:54.486849Z"}],"osv":[{"id":"CVE-2026-105851","title":"Payload: Field access control bypass on auth collections","description":"Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T16:13:11.367Z","modified":"2026-10-28T02:31:15.172820877Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N","level":"critical"}],"cwes":["CWE-284","CWE-863"],"updated_at":"2026-11-02T15:44:54.583213Z"}]}}