{"id":"CVE-2026-47375","aliases":["GHSA-cxv7-gmmp-228p"],"url":"https://o3.security/vulnerability/CVE-2026-47375","summary":"NocoDB: Postgres SQL Injection in Formula `ARRAYSORT`","details":"### Summary\n\nAn authenticated user with `columnAdd` permission on a Postgres-backed base can inject arbitrary SQL into the formula engine via the optional `direction` argument of `ARRAYSORT(...)`. The value is unrestricted by formula validation and embedded into a `knex.raw` `ORDER BY` clause, executing during column creation and on every subsequent record read of the formula column.\n\n### Details\n\nThe vulnerability is specific to the Postgres mapping for `ARRAYSORT` in `packages/nocodb/src/db/functionMappings/pg.ts`. Two factors combine:\n\n1. `ARRAYSORT` declares only argument count, not `validation.args.type`, so `validate-extract-tree.ts` does not enforce an allowlist on the second argument.\n2. The Postgres mapping then passes the attacker-controlled value through `sanitize(knex.raw(...))` into a raw SQL fragment:\n\n```ts\nconst direction = pt.arguments[1]\n  ? sanitize(\n      knex.raw(pt.arguments[1]?.value ?? (await fn(pt.arguments[1])).builder),\n    )\n  : knex.raw('asc');\n\nreturn {\n  builder: knex.raw(`ARRAY(SELECT UNNEST(??) ORDER BY 1 ??)`, [source, direction]),\n};\n```\n\n`sanitize()` in `sqlSanitize.ts` only escapes `?` placeholder characters; it does not validate SQL syntax. A payload such as `\"desc, (SELECT COUNT(*) FROM generate_series(1,30000000))\"` is accepted, persisted, and re-executed on every read of the formula column.\n\n### Impact\n\n- Authenticated SQL injection against Postgres-backed bases.\n- Requires `columnAdd` permission (creator/owner-level).\n- Proven impact: attacker-controlled heavy SQL causing multi-second query stalls (DoS).\n- Potentially extendable to broader SQL injection outcomes depending on database permissions and deployment hardening.\n- Limited to Postgres backends.\n\n### Credit\n\nThis issue was reported by [@leduckhuong](https://github.com/leduckhuong).","published":"2026-06-23T20:36:26.870Z","modified":"2026-08-12T03:51:16.215071205Z","cvss":{"score":6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H"},"epss":{"score":0.00215,"percentile":0.12132,"asOf":"2026-08-20"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"nocodb","fixedVersion":"2026.04.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47375.json"},{"type":"ADVISORY","url":"https://github.com/nocodb/nocodb/security/advisories/GHSA-cxv7-gmmp-228p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47375"},{"type":"PACKAGE","url":"https://github.com/nocodb/nocodb"},{"type":"WEB","url":"https://github.com/nocodb/nocodb/releases/tag/2026.04.1"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.215071205Z"}}