{"id":"GHSA-vjjx-rfw4-rmfc","summary":"SurrealDB: Graph traversal bypasses table SELECT permissions","details":"An authenticated record or scope user could read records on any table reachable through a graph edge or `REFERENCES TO` back-reference, regardless of that table's `PERMISSIONS FOR select` clause.\n\nTraversing `SELECT * FROM source-\u003eedge-\u003etarget` returned full documents from `target` even when `target` was defined as `PERMISSIONS FOR select NONE`. The same bypass extended through multi-hop chains, so any table reachable by a sequence of edges from a readable starting point was exposed.\n\nThe root cause: `GraphEdgeScan` and `ReferenceScan` fetched records straight from storage without routing them through `Document::pluck_select`, so the target table's permission expression was never consulted.\n\n### Impact\n\nAn authenticated record or scope user can read records on any table reachable through a chain of graph edges or back-references from a table they have `select` on, regardless of the target's `PERMISSIONS FOR select` clause. Confidentiality-only and bounded to the caller's current database — namespace and database isolation are unaffected.\n\n### Patches\n\nA new per-batch permission cache (`exec::permission::CachedTableSelect`) resolves each target table's `SELECT` permission once and filters yielded values through `check_permission_for_value`, matching the regular `SELECT` code path.\n\n- Versions 3.1.0 and later are not affected.\n\n### Workarounds\n\n- Remove `select` permission on edge tables whose targets should be hidden.\n- Use namespace or database isolation as the primary boundary where feasible.","aliases":["CVE-2026-63746"],"modified":"2026-09-04T20:40:32.992781Z","published":"2026-07-01T20:10:34Z","database_specific":{"github_reviewed_at":"2026-07-01T20:10:34Z","nvd_published_at":null,"cwe_ids":["CWE-200","CWE-863"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/surrealdb/surrealdb/security/advisories/GHSA-vjjx-rfw4-rmfc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63746"},{"type":"PACKAGE","url":"https://github.com/surrealdb/surrealdb"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/surrealdb-before-permission-bypass-via-graph-traversal"}],"affected":[{"package":{"name":"surrealdb","ecosystem":"crates.io","purl":"pkg:cargo/surrealdb"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-vjjx-rfw4-rmfc/GHSA-vjjx-rfw4-rmfc.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}