{"id":"CVE-2026-62861","aliases":["EUVD-2026-66126","GHSA-7h82-p425-wpmg"],"status":"published","title":"TypeBot: Cross-tenant custom-domain removal via unbound `name` in handleDeleteCustomDomain","description":"TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.","severity":{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00414,"percentile":0.35938,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-639","CWE-862"],"published":"2026-08-25T21:46:24Z","modified":"2026-10-28T02:31:13Z","products":[{"vendor":"baptistearno","product":"typebot.io"}],"references":[{"url":"https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-7h82-p425-wpmg","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/baptisteArno/typebot.io/commit/06575dfcd461ba76071012869d4b1f4046f9a6b8","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62861.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62861","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-62861","title":"TypeBot: Cross-tenant custom-domain removal via unbound `name` in handleDeleteCustomDomain","description":"TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.","status":"published","published":"2026-08-25T21:46:24.861Z","modified":"2026-08-27T14:35:10.158Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H","level":"medium","assessor":"cna"}],"cwes":["CWE-639","CWE-862"],"updated_at":"2026-11-02T14:20:14.665567Z"}],"euvd":[{"id":"EUVD-2026-66126","description":"TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.","status":"published","published":"2026-08-25T21:46:24Z","modified":"2026-08-27T14:35:10Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H","level":"medium"}],"updated_at":"2026-11-02T18:01:28.115205Z"}],"nvd":[{"id":"CVE-2026-62861","description":"TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.","status":"published","published":"2026-08-25T22:17:04.177Z","modified":"2026-09-09T21:09:13.08Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H/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"}],"cwes":["CWE-639","CWE-862"],"updated_at":"2026-11-02T14:12:41.66469Z"}],"osv":[{"id":"CVE-2026-62861","title":"TypeBot: Cross-tenant custom-domain removal via unbound `name` in handleDeleteCustomDomain","description":"TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.","status":"published","published":"2026-08-25T21:46:24.861Z","modified":"2026-10-28T02:31:13.824641076Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H","level":"medium"}],"cwes":["CWE-639","CWE-862"],"updated_at":"2026-11-02T15:45:13.306117Z"}]}}