CVE-2026-46550

Description

### Summary The 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. ### Details In `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. The 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. This is distinct from GHSA-x4vh-j75g-268g (refresh-token lifecycle on password reset) — different root cause, different attack vector. ### Impact - Cookie interception on plain HTTP networks (no `secure`). - 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. - Refresh tokens have multi-day expiry (`NC_REFRESH_TOKEN_EXP_IN_DAYS`), so the exposure window is long. ### Credit This issue was reported by [@ik0z](https://github.com/ik0z).

How to fix CVE-2026-46550

No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.

• —no fix listed

Is CVE-2026-46550 being exploited?

No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-46550.

Affected packages (1)

• from 0, <= 0.301.3