{"id":"CVE-2026-108718","state":"PUBLISHED","title":"Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration","description":"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.","publishedAt":"2026-10-11T12:19:30.004Z","updatedAt":"2026-10-18T11:53:06.974Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["Rill Data rill"],"affected":[{"vendor":"Rill Data","product":"rill","packageURL":"pkg:github/rilldata/rill","defaultStatus":"unaffected","versions":[{"version":"0.77.0","status":"affected","lessThanOrEqual":"0.90.5","versionType":"semver"}],"repo":"https://github.com/rilldata/rill"}],"references":["https://hackmd.io/@haind03/rill-oauth-open-registration-long-lived-token","https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/handlers.go#L650-L697","https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/mcp_oauth.go#L77-L153","https://github.com/rilldata/rill/blob/b9ea8c6f215e56c4c0848771e70b3ec38346eacc/admin/server/auth/pkce.go#L173-L214","https://github.com/rilldata/rill","https://www.vulncheck.com/advisories/rill-0.77.0-through-0.90.5-oauth-missing-authorization-via-dynamic-client-registration"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/108xxx/CVE-2026-108718.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-108718","state":"PUBLISHED","datePublished":"2026-10-11T12:19:30.004Z","dateUpdated":"2026-10-18T11:53:06.974Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-11T01:52:16.678Z"},"containers":{"cna":{"title":"Rill 0.77.0 through 0.90.5 OAuth Missing Authorization via Dynamic Client Registration","descriptions":[{"lang":"en","value":"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. 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