{"id":"CVE-2026-46550","aliases":["GHSA-f74w-272x-mqcv"],"url":"https://o3.security/vulnerability/CVE-2026-46550","summary":"NocoDB: Refresh Token Cookie Set Without `Secure` and `SameSite` Flags","details":"### Summary\n\nThe refresh-token cookie was set with `httpOnly: true` but missing both the `secure` flag and the `sameSite` attribute. Over plain HTTP the cookie could be intercepted on the network; without `sameSite`, browsers attached it to cross-site POSTs, enabling CSRF against the token-refresh endpoint.\n\n### Details\n\nIn `packages/nocodb/src/services/users/helpers.ts`, `setTokenCookie` produced the cookie with only `httpOnly`, an `expires` date, and an optional `domain` from `NC_BASE_HOST_NAME` — no `secure`, no `sameSite`. The refresh endpoint `POST /api/v2/auth/token/refresh` (`auth.controller.ts`) read the cookie unconditionally and returned a new JWT, with no CSRF token.\n\nThe fix sets `httpOnly: true`, `sameSite: 'lax'`, and conditional `secure: req.ncSiteUrl.startsWith('https')` so the flag is active under HTTPS while still functional on plain-HTTP localhost development.\n\nThis is distinct from GHSA-x4vh-j75g-268g (refresh-token lifecycle on password reset) — different root cause, different attack vector.\n\n### Impact\n\n- Cookie interception on plain HTTP networks (no `secure`).\n- Cross-site refresh: malicious cross-origin pages could trigger token refresh and, combined with any same-origin XSS or open-redirect on the NocoDB domain, capture the new JWT.\n- Refresh tokens have multi-day expiry (`NC_REFRESH_TOKEN_EXP_IN_DAYS`), so the exposure window is long.\n\n### Credit\n\nThis issue was reported by [@ik0z](https://github.com/ik0z).","published":"2026-06-23T20:39:22.473Z","modified":"2026-08-12T03:51:26.637875920Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":{"score":0.00159,"percentile":0.05247,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"nocodb","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46550.json"},{"type":"ADVISORY","url":"https://github.com/nocodb/nocodb/security/advisories/GHSA-f74w-272x-mqcv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46550"},{"type":"PACKAGE","url":"https://github.com/nocodb/nocodb"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.637875920Z"}}