Auth bypass in Nocodb
CVE-2026-121736
NocoDB 0.300.0 before 2026.08.0 contains a missing authentication vulnerability in the POST /api/v2/oauth/authorize handler that allows unauthenticated attackers to create OAuth authorization codes. Attackers can send anonymous requests with client_id, redirect_uri and approved=true to insert unbounded ownerless authorization code records, limited only by rate limiting.
Vulnerability class: Broken Authentication
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/nocodb/nocodb/commit/42128735eba328d157c2e90b98795cb248dc0847 (patch)
- github.com/nocodb/nocodb (product)
- github.com/nocodb/nocodb/security/advisories/GHSA-532v-ccph-m3xg (vendor-advisory)
- github.com/nocodb/nocodb/blob/2026.07.0/packages/nocodb/src/modules/oauth/contr… (technical-description)
- github.com/nocodb/nocodb/releases/tag/2026.08.0 (release-notes)
- www.vulncheck.com/advisories/nocodb-0.300.0-before-2026.08.0-unauthenticated-oa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-121736?
- CVE-2026-121736 is a medium-severity vulnerability in Nocodb, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-11-03.
- How severe is CVE-2026-121736?
- Medium severity. CVSS v3 base score is 5.3 out of 10.