{"id":"CVE-2026-105864","aliases":["EUVD-2026-93510","GHSA-xhm9-gwgw-3q2q"],"status":"published","title":"Payload: Cross-tenant create in @payloadcms/plugin-multi-tenant","description":"Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00196,"percentile":0.09372,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2026-10-06T16:42:27Z","modified":"2026-10-28T02:31:09Z","fixes":[{"ecosystem":"npm","package":"@payloadcms/plugin-multi-tenant","fixed_in":["3.90.0","4.0.0-canary.34"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@payloadcms/plugin-multi-tenant","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.90.0"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@payloadcms/plugin-multi-tenant","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.34"}]}]},{"source":"osv","ecosystem":"npm","package":"@payloadcms/plugin-multi-tenant","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.90.0"}]}]},{"source":"osv","ecosystem":"npm","package":"@payloadcms/plugin-multi-tenant","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-canary.0"},{"fixed":"4.0.0-canary.34"}]}]}],"products":[{"vendor":"@payloadcms","product":"plugin-multi-tenant"},{"vendor":"payloadcms","product":"payload"}],"references":[{"url":"https://github.com/payloadcms/payload/security/advisories/GHSA-xhm9-gwgw-3q2q","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/payloadcms/payload/commit/b8fc06a18afb6974dc07f95ac1e541c716e5926b","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/payloadcms/payload/releases/tag/v3.90.0","tags":["x_refsource_MISC","Patch","Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105864","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-xhm9-gwgw-3q2q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105864.json","tags":["advisory"]},{"url":"https://github.com/payloadcms/payload","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-105864","title":"Payload: Cross-tenant create in @payloadcms/plugin-multi-tenant","description":"Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T16:42:27.942Z","modified":"2026-10-06T17:25:18.758Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-93510","description":"Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T16:42:27Z","modified":"2026-10-06T17:25:18Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:37.140631Z"}],"ghsa":[{"id":"GHSA-xhm9-gwgw-3q2q","title":"@payloadcms/plugin-multi-tenant has a cross-tenant create issue","description":"### Impact\nAn authenticated user limited to one tenant could create a record in another tenant. This requires the multi-tenant plugin with at least one tenant-enabled collection.\n\nReads and direct edits to an existing target-tenant document were not bypassed.\n\nYou are affected if:\n- You are using @payloadcms/plugin-multi-tenant\n\n### Patches\nUsers should upgrade Payload packages to `\u003e= 3.90.0` or `\u003e= 4.0.0-canary.34`.\n\n### Workarounds\nYou can add access control with `accessResultOverride` on the multi-tenant collection config to ensure a user has access to the tenant before creating.","status":"published","published":"2026-10-07T20:29:27Z","modified":"2026-10-07T20:29:30Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:41:29.107536Z"}],"nvd":[{"id":"CVE-2026-105864","description":"Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T17:17:22.703Z","modified":"2026-10-15T00:08:54.16Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/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":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:54.486849Z"}],"osv":[{"id":"CVE-2026-105864","title":"Payload: Cross-tenant create in @payloadcms/plugin-multi-tenant","description":"Payload is a free and open source headless content management system. In @payloadcms/plugin-multi-tenant versions before 3.90.0 and canary versions before 4.0.0-canary.34, an authenticated user limited to one tenant can create a record in another tenant when at least one tenant-enabled collection exists. Reads and direct edits of existing documents in the target tenant are not bypassed. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.","status":"published","published":"2026-10-06T16:42:27.942Z","modified":"2026-10-28T02:31:09.312270195Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:54.583213Z"},{"id":"GHSA-xhm9-gwgw-3q2q","title":"@payloadcms/plugin-multi-tenant has a cross-tenant create issue","description":"### Impact\nAn authenticated user limited to one tenant could create a record in another tenant. This requires the multi-tenant plugin with at least one tenant-enabled collection.\n\nReads and direct edits to an existing target-tenant document were not bypassed.\n\nYou are affected if:\n- You are using @payloadcms/plugin-multi-tenant\n\n### Patches\nUsers should upgrade Payload packages to `\u003e= 3.90.0` or `\u003e= 4.0.0-canary.34`.\n\n### Workarounds\nYou can add access control with `accessResultOverride` on the multi-tenant collection config to ensure a user has access to the tenant before creating.","status":"published","published":"2026-10-07T20:29:27Z","modified":"2026-10-07T20:45:07.236890143Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:47:00.198893Z"}]}}