{"id":"GHSA-wjjj-24cx-f28g","aliases":[],"url":"https://o3.security/vulnerability/GHSA-wjjj-24cx-f28g","summary":"SurrealDB has unauthenticated remote DoS via malformed RPC `use` call","details":"A single unauthenticated WebSocket message to `/rpc` crashed the SurrealDB server. Sending `use { db: \"x\" }` without first selecting a namespace hit `.expect(\"namespace should be set\")` in the `use` handler; because `surrealdb-core` is built with `panic = 'abort'`, the panic terminated the process. `use` is callable before `signin`, and the per-method capability check passes by default for guest callers — so no credentials, token, or `--allow-guests` flag are required.\n\n### Impact\n\nAn unauthenticated remote attacker who could reach the `/rpc` endpoint could crash the SurrealDB server with a single WebSocket message. No credentials, token, session knowledge, or capability are required.\n\n### Patches\n\nA patch has been introduced that returns a typed `invalid_params` response when `db` is set on a session with no `ns`, replacing the panic.\n\n- Versions 3.1.0 and later are not affected by this issue.\n\n### Workarounds\n\nAffected users who are unable to update should restrict network access to the `/rpc` endpoint to trusted clients, and run SurrealDB under a process supervisor that restarts on crash.","published":"2026-07-01T20:04:22Z","modified":"2026-07-01T20:15:09.938975119Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"surrealdb","fixedVersion":"3.1.0"}],"fix":{"url":"https://github.com/surrealdb/surrealdb/commit/1537ec4fbd789c61a5b43b648a854577dbe31a34","label":"surrealdb/surrealdb@1537ec4"},"references":[{"type":"WEB","url":"https://github.com/surrealdb/surrealdb/security/advisories/GHSA-wjjj-24cx-f28g"},{"type":"WEB","url":"https://github.com/surrealdb/surrealdb/commit/1537ec4fbd789c61a5b43b648a854577dbe31a34"},{"type":"PACKAGE","url":"https://github.com/surrealdb/surrealdb"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-01T20:15:09.938975119Z"}}