{"id":"GHSA-p96c-xwx8-3cqj","revision":"87b83c00e6604bf5bec0974e337df17e","records":[{"revision":"87b83c00e6604bf5bec0974e337df17e","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-p96c-xwx8-3cqj","aliases":["CVE-2026-105860"],"title":"Payload has a tenant authorization bypass in Multi-Tenant Plugin","description":"## Impact\n\nWhen using the default tenant array field access, an authenticated user could assign themselves to other tenants.\n\n**You are affected if:**\n\n- You are using `@payloadcms/plugin-multi-tenant`\n\nIf you configure the tenants arrayFieldAccess.create/update functions, a secured replacement membership field, you are not affected by this specific default behavior.\n\n## Patches\n\nUsers should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`.\n\n## Workarounds\n\nConfigure tenants arrayFieldAccess.create and tenants arrayFieldAccess.update so only trusted users authorized for all tenants can modify memberships.","state":0,"publishedAt":"2026-10-07T20:29:53+00:00","modifiedAt":"2026-10-07T20:45:05.3423795+00:00","affected":[{"ecosystem":"npm","name":"@payloadcms/plugin-multi-tenant","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.90.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@payloadcms/plugin-multi-tenant","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"4.0.0-canary.0"},{"kind":"fixed","version":"4.0.0-canary.34"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/payloadcms/payload/security/advisories/GHSA-p96c-xwx8-3cqj","https://nvd.nist.gov/vuln/detail/CVE-2026-105860","https://github.com/payloadcms/payload/commit/19b58692d20d3947f31124bf7a88ac14a5ebf02e","https://github.com/payloadcms/payload","https://github.com/payloadcms/payload/releases/tag/v3.90.0"],"sourceUrl":"https://github.com/advisories/GHSA-p96c-xwx8-3cqj","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-p96c-xwx8-3cqj","identifiers":["GHSA-p96c-xwx8-3cqj","CVE-2026-105860"]},"retained":false,"historicalAffected":[]}],"coverage":[]}