{"id":"CVE-2026-108718","summary":"Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration","details":"Rill 0.77.0 through 0.90.5 contains a missing authorization vulnerability in the admin OAuth server that issues authorization codes to dynamically registered clients without user consent. Attackers can register a client with the long_lived_access_token scope and lure a user to an authorization link, obtaining a non-expiring API token with the user's full permissions.","modified":"2026-10-12T02:34:05.045250870Z","published":"2026-10-11T12:19:30.004Z","database_specific":{"cwe_ids":["CWE-862"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108718.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108718.json"},{"type":"PACKAGE","url":"https://github.com/rilldata/rill"},{"type":"ARTICLE","url":"https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/handlers.go#L650-L697"},{"type":"ARTICLE","url":"https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/mcp_oauth.go#L77-L153"},{"type":"ARTICLE","url":"https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/pkce.go#L173-L214"},{"type":"ADVISORY","url":"https://hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108718"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-missing-authorization-via-dynamic-client-registration"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rilldata/rill","events":[{"introduced":"b1d4efe08cc2cc484f3d363a04aaaadff11618a5"},{"last_affected":"b9ea8c6f215e56c4c0848771e70b3ec38346eacc"}],"database_specific":{"extracted_events":[{"introduced":"0.77.0"},{"last_affected":"0.90.5"}],"source":"AFFECTED_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-108718.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}