{"id":"CVE-2026-109346","revision":"b564df10b3474864a9fb111cb7e3aca5","records":[{"revision":"b564df10b3474864a9fb111cb7e3aca5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109346","aliases":[],"title":"better-auth 1.3.8-beta.3 before 1.7.0-rc.3 Device Authorization Phishing via /device","description":"better-auth from 1.3.8-beta.3 before 1.7.0-rc.3 contains a UI misrepresentation vulnerability in the deviceAuthorization plugin because GET /device omits the requesting client_id and scope. Attackers can start a device request via /device/code, trick signed-in users into approving the code, then redeem it at /device/token for a live session token.","state":0,"publishedAt":"2026-10-12T16:05:30.595+00:00","modifiedAt":"2026-10-12T16:05:30.595+00:00","affected":[{"ecosystem":"Vendor product","name":"better-auth","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"better-auth\",\n                    \"product\": \"better-auth\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/better-auth\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.3.8-beta.3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"1.7.0-rc.3\"\n                        },\n                        {\n                            \"version\": \"1.7.0-rc.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.5,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","score":8.1,"severity":"HIGH"}],"references":["https://github.com/better-auth/better-auth/security/advisories/GHSA-q84f-53jg-9ppm","https://www.vulncheck.com/advisories/better-auth-1.3.8-beta.3-before-1.7.0-rc.3-device-authorization-phishing-via-device"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109346","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109346","identifiers":["CVE-2026-109346"]},"retained":false,"historicalAffected":[]}],"coverage":[]}