CVE-2026-126276

EUVD-2026-125245
NocoDB before 2026.08.1 contains an authentication bypass vulnerability in oauth-token.service.ts that treats PKCE as a substitute for confidential client authentication, skipping client secret verification when omitted. Attackers holding a captured authorization code and PKCE verifier can mint access tokens and 60-day refresh tokens for a confidential client without knowing its secret.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
6.3 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 10.22%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
nocodbnocodb
𝑥
< 2026.8.1
CNA
Common Weakness Enumeration
References
https://github.com/nocodb/nocodb/security/advisories/GHSA-4cx5-q9xx-5pgj
https://www.vulncheck.com/advisories/nocodb-before-2026.08.1-client-authentication-bypass-via-oauth-token-exchange