{"id":"CVE-2026-63746","aliases":["EUVD-2026-45917","GHSA-4q5r-gwcx-24m9","GHSA-vjjx-rfw4-rmfc"],"status":"published","title":"SurrealDB before 3.1.0 Permission Bypass via Graph Traversal","description":"SurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00399,"percentile":0.34614,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200","CWE-863"],"published":"2026-07-01T20:10:34Z","modified":"2026-11-04T02:47:49Z","fixes":[{"ecosystem":"crates.io","package":"surrealdb","fixed_in":["3.1.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"surrealdb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"surrealdb","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.0"}]}]}],"products":[{"vendor":"surrealdb","product":"surrealdb"}],"references":[{"url":"https://github.com/surrealdb/surrealdb/security/advisories/GHSA-vjjx-rfw4-rmfc","tags":["vendor-advisory","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://www.vulncheck.com/advisories/surrealdb-before-permission-bypass-via-graph-traversal","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63746","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4q5r-gwcx-24m9"},{"url":"https://github.com/advisories/GHSA-vjjx-rfw4-rmfc"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63746.json","tags":["advisory"]},{"url":"https://github.com/surrealdb/surrealdb","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-63746","title":"SurrealDB before 3.1.0 Permission Bypass via Graph Traversal","description":"SurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","status":"published","published":"2026-07-20T12:04:39.37Z","modified":"2026-10-08T15:23:47.527Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:19:55.914391Z"}],"euvd":[{"id":"EUVD-2026-45917","description":"SurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","status":"published","published":"2026-07-20T12:04:39Z","modified":"2026-10-08T15:23:47Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:31.696571Z"}],"ghsa":[{"id":"GHSA-4q5r-gwcx-24m9","title":"Duplicate Advisory: SurrealDB: Graph traversal bypasses table SELECT permissions","description":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-vjjx-rfw4-rmfc. This link is maintained to preserve external references.\n\n## Original Description\nSurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","status":"withdrawn","published":"2026-07-20T12:33:09Z","modified":"2026-09-04T20:12:38Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:41:12.487077Z"},{"id":"GHSA-vjjx-rfw4-rmfc","title":"SurrealDB: Graph traversal bypasses table SELECT permissions","description":"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.","status":"published","published":"2026-07-01T20:10:34Z","modified":"2026-09-04T20:12:56Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-863"],"updated_at":"2026-11-02T14:41:12.487077Z"}],"nvd":[{"id":"CVE-2026-63746","description":"SurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","status":"published","published":"2026-07-20T12:19:44.143Z","modified":"2026-10-08T16:17:27.73Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:31.024898Z"}],"osv":[{"id":"CVE-2026-63746","title":"SurrealDB before 3.1.0 Permission Bypass via Graph Traversal","description":"SurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","status":"published","published":"2026-07-20T12:04:39.37Z","modified":"2026-11-04T02:47:49.019296165Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-04T02:53:00.786919Z"},{"id":"GHSA-4q5r-gwcx-24m9","title":"Duplicate Advisory: SurrealDB: Graph traversal bypasses table SELECT permissions","description":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-vjjx-rfw4-rmfc. This link is maintained to preserve external references.\n\n## Original Description\nSurrealDB versions before 3.1.0 fail to enforce table SELECT permissions when traversing graph edges or back-references. Authenticated users can read records from any table reachable through graph edges regardless of the target table's PERMISSIONS FOR select clause.","status":"withdrawn","published":"2026-07-20T12:33:09Z","modified":"2026-09-04T20:30:04.265306393Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:46:37.148947Z"},{"id":"GHSA-vjjx-rfw4-rmfc","title":"SurrealDB: Graph traversal bypasses table SELECT permissions","description":"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.","status":"published","published":"2026-07-01T20:10:34Z","modified":"2026-09-04T20:40:32.992781Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-863"],"updated_at":"2026-11-02T15:46:57.348035Z"}]}}